Buying gaming computer i5 4690 + r9 280x

Rangojr

Honorable
Jan 7, 2015
13
0
10,510
Hi, so I'm upgrading from a crap laptop to much faster and more appropriate gaming computer. I'm having trouble not knowing what I'm looking for but I kind of have an idea. So I've been researching around for 5 days now and I've came across this site called pcpartpicker. So I've started to mess around and configure a gaming computer for around 800£ and I've came up with this. http://uk.pcpartpicker.com/p/yDYVZL any help would be appreciated. Also the game that il be running this most on would be Counter strike: go, arms 2 and 3 plus payday and some other steam games.
But mostly counter strike
Thanks, Alex