EDIT : Why am I getting -frags? all I did was try to help the guy, these are my perspectives of things that are good, sorry if I wrote something wrong :/.
Mice you can go and search on the thread about mice on the forum search there is already a thread about mice.
The top 4 Mice ATM are probably
Logitech G400/G400s
Razer Deathadder 2013
Zowie FK
SteelSeries Sensi/Xai - This one has accel, which makes it bad already, but it's really
good, not sure about price though.
There is also a thread about Mousepads on tf.tv, just search on the forum search bar.
Top 3 Mouse Pads that you would want to go after are :
Razer Goliathus Speed/Control - Your prefrence which one.
Puretrak Talent / Stealth - Both are good, talent is prefered.
SteelSeries QcK+ / Heavy - Again, your prefrence.
And again, keyboards have a thread aswell, I don't really understand much in keyboards since the variaty is major, as defy said, a mechanichal would be the choise for gaming, but they aren't the cheapest, I use a Tt MekaG1 and it's great, but I'm sorry that I didn't buy a keyboard without a numpad but you can attach it if you want.
Top Keyboards you want to search are :
Razer Blackwidow - Machanichal pretty solid, expensive.
Tt Meka / Challenger / Others - Mechanical, great preformence with nice side bonuses, avrage in price.
Ducky Keyboards - Mechanichal, designed for gamers, pretty amazing, expensive as fuck.
I'm sure Logitech has some, and so does Microsoft, so the keyboard doesn't matter THAT much, so long as it feels nice for your hand, and you don't hurt yourself while using it or dislike it after a week.
I personally prefer Headsets rather than headphones with a clip on mic, but it's again what you prefer.
If you want awesome sound and awesome clip on mic that will brake faster than a normal Headset mic, then go for it.
If you want aweosome sound with an awesome mic, that will never brake if you have a solid gaming headset, then go for these Headsets :
Now there is a prefrence with Headsets, 2.0 - 5.1 - 7.1, you need to choose which kind of surround system do you prefer.
To me 2.0 is great and suites me the best, also I don't have a 7.1 sound card lmao.
If you don't have a sound card that fits these other than 2.0, then don't buy one.
Razer Megalodon is the one I use, has both 7.1 and 2.0, so fits whatever you want, is great overall.
I had also Tt Shock ONE, was great, broke after a month, regret buying it.
There is also the Earphones segment, and so many more, I'm not the one to give advice here.
Hope I helped with somewhat, add me if you can't find the threads about Headsets, Mice, Mousepads, Headsets.
P.S 200$ Is a really low budget, you will be limited, espicially in the Headsets segment.