Also dont forget!! You should get 2 free games with your 7850, participating retailers ONLY.
http://sites.amd.com/us/promo/never-settle/Pages/nsreloadedforever.aspx
Scroll down to check first, if you buy from the wrong retailer you'll miss out on it. I mentioned it in other thread but just to remind you, scan.co.uk has component insurance for £5 handy if you aren't too confident handling your first assembly :)
Intel core i7 930 OC @ 4.0 ghz
XFX Double dissipation Radeon HD 7950 356 bit 3gb GDDR5 OC @ 1150 MHz core + 1575 x 4 memory
Triple channel DDR 3 12gb RAM 1600 MHz