I have two 9800GTX's in SLI and I am pretty impressed (going from 2 8800GTS 640mb in SLI). I overclocked them to 766/1915/1125. I have the fans at 80% (veryloud) but they both idle around 38C. Haven;t done much testing, but am able to play Crysis in DX9 ( (with the shaders, texture, physics, and pp on very high hack - love the God rays!) at 1920x1200. First Contact, the early less graphics intensive level of the game, I get 35-40 FPS average, which is fantastic. The later, more graphics intensive level where everything is frozen over and crazy alien robots are chasing you, I get about 25fps average - still quite playable. COD4 all maxed out in DX9 at 1920x1200 and I am getting well over 120FPS average. Think I'm set for a good while.