I've decided to go with the AMD build. Since I won't have to buy a new mobo to support one of the newer processors from AMD down the road. I'm not sure though If I should buy a Radeon HD 4xxx/ Geforce GTX2xx
and wait a year or two until some nice Directx11 titles come out for the PC and then buy a GPU which supports DirectX11 and get more bang out of my buck. I won't be playing on ultra high resolutions so I can assume that the Directx10/10.1 cards will last long enough for me to sell them in 2 years and buy one of the newest Directx11 GPUs.
I'll probably go with the 5850, just worried about processor restrictions whenever I crossfire them. I doubt it will be a problem with the Phenom II 955 BE though...One more thing, should I go with 1333MHz memory with low timings or buy 1600MHz?