That card that Gazz found would do the trick nicely. I have a 7900gs oc in my old pute & I installed Crysis on it to see how it ran, everything on Med w/o AA no probs (processor is a x2 4600 but that wouldn't make much diff)

The 7900's are better than the 8400/8500/8600 in performance (& even some 8800's)

Who wants dx10 anyways - it's an MS gimmick to sell vista