I'm not sure if anyone is interested but this is a pretty cool video
Core i7 Extreme 965
GTX 280
2560*1200
Most things maxed out, runs between 20 and 40fps, give the video a watch.
Crossfire and SLi are not supported. He says (and users on GTAforums.com) say that Crossfire gets the same performance as a single GPU and SLi is pretty much the same to, this could be because the game is too CPU limited?
John