@Samail - Yes, 6 fans on the case, 10 fans in total (1*CPU, 3*GPU). Fortunately it only gets hot and noisy when I'm gaming, and then I either have headphones on or the speakers turned up wink

@Knight Flyer - I've heard Metro 2033 was better on ATI than NVidia anyway, and I suspect my biggest problem is the memory (850MB Video ram per GPU instead of the usual 1GB). It's ok on low detail in mono vision, although it's only 30FPS and gets choppy at times. Definitely can't do stereo vision, which is annoying - I bought the game mainly for it's 3DVision certification.

@Endurium - very nice NVidia rig - I'm envious. Although I can do Crysis at ultra no problems as well.