#1494
The 120Hz on the main monitor is just my setup so I can watch 30/60fps youtube videos on it.

FreeSync actually changes it to exactly what you need. So 24 fps -> 24Hz. It's mostly meant for games so it's nice to have for your main monitor as well. E.g. when your fps drop to 55 from 60 instead of stuttering or tearing it just changes to 55Hz.

I'll do a partlist tomorrow.
Rough budget for the monitors?

#1491
1. The same. 80 Plus Platinum, regulation is <2%, ripple <25mV and so on. It's already overkill. I mean what do you want to improve on? Wattage? 550W is plenty for for a build that draws ~350W stock, maybe 450W overclocked.
There are some Gold units with better regulations, but they cost 20-30$ more. Not worth it for a sidegrade. There's the 650W P2 which is slightly better in all aspects but 100$ right now. Twice the price for minor improvements? Yeah, not happening either. Titanium? You're looking at 150$ for a Seasonic, 170$ for Super Flower (EVGA T2).

There's one thing you could do. Slight mobo upgrade and the 650W version of the PSU. Now you could add a second RX 480 some time down the road.
http://pcpartpicker.com/list/DR8YgL
I'll be honest though: Since normal Crossfire does nothing for the actual latency this would only be worth it with DX12/Vulkan. So probably not worth it for you.

2. They perform almost exactly the same. Noise, power consumption, fps. The PCB stays a bit cooler on the Red Devil though and it overclocks slightly higher (5-25MHz). I think the triple fan cooler is the reason for both. Also I like triple fan coolers. So that's why I picked the Red Devil, but the Gaming X is definitely my second choice out of all other aftermarket 480s.

#1492
When something is so outdated that it becomes hard to find it's probably not worth buying anymore. I mean it has neither 120/144Hz nor G-Sync/FreeSync nor Lightboost. And you said you want those.

Definitely 27" or is bigger or smaller fine or even preferred?
Higher res as in 1440p? Or even higher if possible?
4K for the 40"? Approximately 40" or exactly 40"?

The 3 things you said yes to all must haves or just "I'll take it if it's available"? And only for the 2nd/new main monitor or for the "TV" as well?
I mean 120/144Hz won't do anything for the "TV" and Lightboost is coupled to that. But FreeSync? I'm not sure if you've ever seen a 24fps movie on a 60Hz screen. It's awful. I usually just set my "movie monitors" to 47 or 72Hz so it's all in sync again and my main monitor to 120 instead of 144Hz so it works with both 24, 30 and 60fps. But why do it manually if you could have the monitor automatically adapt to whatever you need right now, be it 24, 30 or 60fps. So yeah I'd definitely recommend FreeSync for the "TV".

#1489
Where would you even get a PB278Q anymore?
Do you actually want a TV or just a 4K monitor?

Budget in € please, you're going to buy in €, right? £ is kill.

Overclocking yes/no?
120/144Hz yes/no?
G-Sync/FreeSync yes/no?
Lightboost yes/no?

#1487
Ok, how does this look?

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6600K 3.5GHz Quad-Core Processor ($219.99 @ Newegg)
CPU Cooler: Phanteks PH-TC14PE_BK 78.1 CFM CPU Cooler ($64.99 @ Newegg)
Motherboard: ASRock Z170 Pro4S ATX LGA1151 Motherboard ($82.98 @ Newegg)
Memory: G.Skill Ripjaws V Series 16GB (2 x 8GB) DDR4-2666 Memory ($62.99 @ Newegg)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive ($89.39 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($46.88 @ OutletPC)
Video Card: PowerColor Radeon RX 480 8GB Red Devil Video Card ($300.00)
Case: Fractal Design Define S ATX Mid Tower Case ($69.99 @ Newegg)
Power Supply: Rosewill 550W 80+ Platinum Certified Fully-Modular ATX Power Supply ($54.99 @ Newegg)
Monitor: AOC G2460PF 24.0" 144Hz Monitor ($229.81 @ Amazon)
Total: $1207.01
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-08-09 07:04 EDT-0400

MSRP for the RX 480 Red Devil is 269$ so it should be easily within budget once it's back in stock somewhere.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814131694

#1484
Yeah that's not how it works. You can't just set a budget and then ignore it.
If anything I'd get an RX 480 but I already told you that you don't need it.

You're on a budget. There will always be a faster card that's only "a bit" more expensive.
You'll get your 144fps with the 470 just fine. The more you spend on a GPU that you don't need the longer you have to save up to get a 144Hz monitor. I just don't see the point of getting maybe 190 instead of 160fps but being stuck with a 60Hz monitor because of it.

#1482
More like as soon as Intel supports Adaptive Sync it'll be used in Notebooks to lower power draw, if it's used that widely the hardware becomes dirt cheap, every monitor will then have it since it's almost free and not having it would look bad. Suddenly nVidia will announce that Volta or whatever supports FreeSync. In a footnote they'll mention that Pascal, Maxwell and Kepler supported it all along and G-Sync was just a money grab. Or even better they still won't unlock it to force people to upgrade.

So yeah, there's a reason for that nagging feeling.

4 more questions I forgot to ask earlier:
1. Overclocking yes/no?
2. ODD yes/no?
3. Which settings do you want to run Overwatch at? In case you want to go above low. I'm assuming all other games you're going to play will be less demanding.
4. Monitor as well or outside of that budget?

#1480
1. Good. DX12 and Win10 can go die in a fire. VULKAN HYPE!
2. Yeah here's the thing. Why not have the cake and eat it too?
No guarentee I'm getting the model numbers right since I'm doing this from the top of my head.
There was the AOC G2460PQU. Then they refreshed it as G2460PF. Literally identical (red lower bezel), same price but now with FreeSync. Lower manufacturing cost offset the minimal cost of Adaptive Sync. Then there's the G2460PG. Literally identical (and I mean literally) except for a green bezel instead of the red one and G-Sync instead of FreeSync.
Oh and it's more than 100$ more expensive.

See my point? All other things equal G-Sync will cost you 100$ more (which coincidentally is the price nVidia is asking for the G-Sync chip). So if you want G-Sync or FreeSync there is no way in hell nVidia is going to have better perf/$. Seriously, AMD will never price a GPU of the same speed 100$ above nVidia. No one would buy that.

But it gets better/worse: Things won't be equal. The G-Sync chip also does ULMB/Lightboost. You don't want that but you'd have to pay for it anyway.

#1477
PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6600 3.3GHz Quad-Core Processor ($215.99 @ SuperBiiz)
Motherboard: Gigabyte GA-B150M-D3H Micro ATX LGA1151 Motherboard ($81.88 @ OutletPC)
Memory: G.Skill Ripjaws 4 series 16GB (2 x 8GB) DDR4-2400 Memory ($61.99 @ Newegg)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive ($89.99 @ Newegg)
Storage: Seagate Barracuda 3TB 3.5" 7200RPM Internal Hard Drive ($85.00 @ Adorama)
Video Card: PowerColor Radeon RX 480 8GB Red Devil Video Card ($300.00)
Case: Cooler Master N200 MicroATX Mid Tower Case ($36.98 @ Newegg)
Power Supply: Corsair RMx 550W 80+ Gold Certified Fully-Modular ATX Power Supply ($69.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($16.88 @ OutletPC)
External Storage: Seagate Expansion 3TB External Hard Drive ($94.99 @ B&H)
Total: $1053.69
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-08-08 12:42 EDT-0400
GPU either that one or the MSI Gaming X. Haven't read too many reviews yet so there might be other good options too. Just don't get the reference card.

PSU is a bit overkill so here's a cheaper one in case you can't find the monitors I suggested further down cheap enough to fit the budget.
http://pcpartpicker.com/product/zNK7YJ/evga-power-supply-100b10500kr
GPU is sort of a maximum price though, it should be cheaper than that (MSRP is 269$).

If you're fine with 23.5" then you can get IPS and FreeSync at the same time.
Samsung S24F350FHU or S24F356FHU would be 2 options.
The LG 23MP68VQ-P and 24MP68VQ-P don't seem to be available widely yet. The Samsung should be better anyway.

There are also the Samsung C24F390FHU and C24F396FHU which are very similar but VA panels and curved. Not sure if you want that.

pcpartpicker doesn't list any of them though so you'll have to search for the best price yourself.

EDIT:
#1478
Might do a build later today.
I'm guessing Lightboost no?

About perf/$:
1. For how long will most of your gaming be on DX11? Think about it. Anything reasonably competitive from AMD in DX11 will win easily in DX12 and Vulkan.
2. How much is FreeSync/G-Sync worth to you? G-Sync will cost you an extra 100$ so your perf/$ goes out of the window.
3. No. Remember the 390 vs the 970? The 390 had better perf/$.
Now take a guess what's happening with the 480 and 1060 or even better the 470.

https://tpucdn.com/reviews/ASUS/RX_470_STRIX_OC/images/perfdollar_1920_1080.png

Keep in mind that's with Hitman on DX11 (because DX12 runs so much better on AMD) and Tomb Raider on DX12 because it runs worse on all cards. Don't ask.
Also the 480 was benchmarked with the 16.7.2 driver. With 16.8.1 it should be another 3% faster.

#1475
i5 it is.
The 100$ premium isn't for it for maybe being tempted to overclock in a few years.

2 HDDs will be more expensive and consume more power (no one cares about those 5W). Write speed obviously higher though.
On the note of multiple HDDs: Do you have Backups?

#1473
Overclocking yes/no? My guess is no.

Any rough guess what the most demanding game would be you'd expect to play? 60 fps maxed out settings on 1080p shouldn't be a problem with this budget.
I'm a bit confused about the HDDs. Why 2? Why one or both 2TB? Why not just one 3 or 4TB HDD?
Not sure if you need an i7 for the audio production/editing.

At that budget I'd say the choice is between 144Hz and IPS. I mean 1440p is also an option or any combination of the 3 but that'll be a bit more expensive.
24" or 27" or even bigger?

I'm pretty sure he knows that it was fixable. So it depends on how much the whole ordeal cost you.

#1469
Specs? Or is this going to be a completely new build?
Actually with 1200$ it should be possible to not dip below 144.
Already got a 144Hz monitor? If yes which one, if no the usual questions:
Lightboost yes/no?
FreeSync yes/no?

EDIT: I wouldn't follow #1471's advice since he recommends garbage tier SSDs apparently and doesn't know how to use pcpartpicker.

#1470
Here's the list:
http://www.instar-informatika.hr/intel-core-i5-6500-32ghz6mblga-1151-best-buy/int%2Dsl%2Di5%2D6500/product/
https://www.links.hr/en/maticna-ploca-asrock-h170m-pro4s-intel-h170-ddr4-zvuk-g-lan-sata3-usb-3-0-dvi-hdmi-matx-s-1151-050300052
2 of these https://www.links.hr/en/memorija-pc-17000-4-gb-kingston-kvr21n15s8-4-ddr4-2133mhz-051200030
https://www.links.hr/en/ssd-250-0-gb-samsung-850-evo-basic-mz-75e250b-sata-3-2-5-540-520-mb-s-051400325
http://www.instar-informatika.hr/corsair-psu-550w-cx-m-series/COR%2DCP%2D9020102%2DEU/product/
https://www.links.hr/en/kuciste-coolermaster-force-500-for-500-kkn1-midi-usb-3-0-crno-bez-ps-052607162

Should be <5000 total, but it's without the RX 470 since none are listed yet. You could in theory afford an RX 480 but I think it would be overkill so that money is better used for a 144Hz monitor some time in the future.

Monitor for later once you've saved up a bit again:
http://www.instar-informatika.hr/monitor-aoc-led-24-g2460fq-gaming-vga-dvi-hdmi-dp-zvucnici-144h/aoc%2Dg2460fq/product/

Who cares about the winpanel background?
I can finally play TF2 again like I did in 2012.

EDIT: 3d models aren't working and the class picture is stuck on red scout.

#1467
I forgot to ask if you need an ODD.
Won't quite finish it today but monitor is going to be difficult.
I'll show you the options tomorrow but it'll probably mean dropping down to an i3.

Also RX 470s aren't listed yet so I'm just guessing the price.

#1465
I'll see what I can do.
Lightboost yes/no?
FreeSync yes/no?