I just ran the gpu benchmark program and I'm averaging 15.36fps in crysis (1280x1024, 2x antialiasing, all settings at very high)
This is with an overclocked 8800gt, quad at 3520mhz, 1100mhz memory.
I have a feeling with new drivers and tweeking by nvidia and crytek, that 18-20fps is doable.
I think in order to play this on very high at 1280x1024, the next card must be twice the speed of a gt.
It might be playable with sli once drivers get configured
I would like to see what else people are getting