Originally Posted by Flying Donkey
AMD build because you can get the 6950, the 955 won't bottleneck the card.'
Intel build because you can get the 6950, the 2500k won't bottleneck the card.
Seriously though, it's entirely your choice.
Sandy Bridge is SUPERIOR to the Phenom II.
The only POSSIBLE pro that I can think of with AMD is you can wait for Bulldozer...but that's a gamble.
Even if Bulldozer doesn't match up to, or is superior to SB, it will be priced accordingly.
Your choice OP.
For gaming, even a 2500k is overkill.
Futureproofing isn't a bad idea though.