Right folks I am thinking about moving on from my old Athlon 2500+, overclocked to 3200+, which I built myself, to something considerably more up to date. Now, being the tight Jock that I am, I am only wanting to spend about £400. But for that £400 I am wanting something that can comfortably play the likes of World In Conflict, Bioshock, Pro Evo Soccer 7/8 and Call of Duty 4. I probably won't want Vista/Pishter on it, unless Microshaft release SP1 shortly, as I have my own copies of XP Home and XP Pro. Already got a decent monitor, keyboard, etc. So all I am wanting is just the "box" itself. Any recommendations?