At stock settings the game is really glitchy and laggy, but there are a lot of tweaks you can do (useroptions.ini or something) that make it better

i can read

Though this is true (coming from a phenom ii to haswell i7), its not really worth it unless you have a super big budget, 120hz is a lot more of an improvement imo (not that it'd necessarily be possible in this budget, just a point of reference). But yeah, for this budget I'd definitely say go for amd

I really doubt a 8350 will help (aside to streaming/encoding) for tf2. A 4 or 6 core fx would be just as good for the normal game. There are so few programs optimized to take advantage of the extra cores its basically useless.
And about fps, that benchmark isn't a very good example of real world preformance at all(eg I got 180 and regularly have 500 in pubs/more in comp).

bad posts

His view jumps, as in his screen randomly moves as if he's twitching his mouse when he's not moving it. as said, probably the sensor is fucked or if you're lucky dirty

What? Pretty sure these were $60 on normal price a few months ago when I was looking for headphones (might be the mdr v6, but pretty much exactly the same according to headfi)
edit:
same exact price on B&H http://www.bhphotovideo.com/c/product/49510-REG/
second edit I don't think these are particularly hard headphones to drive, though a good soundcard would definitely make them (along with most if not all headpones) better

so edgiiy
http://31.media.tumblr.com/d9cb39cf355a9943830f947d45300688/tumblr_mt92jxaT2K1sihy2ro1_500.png

7950 overclocked is way better than 760 which is basically a 660 ti (not that it even matters given we're talking about tf2). But does this build need to be for only tf2, or for other games like crysis/skyrim/farcyry/whatever

Switch out that $20 psu, other wise that's good^

h.264 is what you want for youtube. But about quality, im pretty sure they have a page that shows you what the optimal bitrate settings and stuff are (prolly link you when you upload the video)

Unless you really hate the metro interface and are too lazy to install startisback (or whatever other program), windows 8 is better. Feel like everyone just wants to join the bandwagon and hate on w8 even without using it

Unless you're streaming/multi tasking a lot I see no need for 16 gigs of ram or an ssd. Cut the case toe a $50-60 one and get a better psu. $60 1tb hdd should be fine, or maybe a 60gb ssd just for windows and tf2 if you really want.

Drop it don't pop it
words to live by

Dude there is literally no need for anything more than a gtx 650 for tf2. Especially seeing as most people run it at like max/highframes. 4770k with integrated graphics (ran this by accident on first day) got 200fps in random pubs on dx8
And yeah for streaming/overclocking aftermarket cooler is a must. But op are you doing only tf2? Or other games like crysis/bf4/etc that are more graphically demanding?