Looking for a PC, prebuilt, or parts I can purchase. The only game I'll be playing will be tf2, so I just want it to be able to run at max settings with high fps. I'm from the UK so any UK sites rather than newegg, etc, would be massively helpful, thanks.

EDIT: Here's the build, got everything but the monitor, mouse, keyboard and OS from a build by twitchtvjohn. Thanks!
Let me know what you guys think, reccomendations, downgrades whatever.

http://pcpartpicker.com/uk/p/sY94

EDIT2: Got a custom built gaming rig sorted. I wish I could change to title to include (solved)