Ok, I installed those drivers...all I can say is...AMAZING.
All my Crysis problems and non-SLI improvements have been fixed.
I'm getting 40-50fps on all high with 2xaa in 1920x1200 in open areas, I get 60 in buildings. That's up from 20-30fps with the 177.41s (for me at least). I don't get any more stuttering and these drivers have kinda renewed by hope for SLI technology. I can say that these drivers are amazing and I get the smoothness of 1 GTX 280 play in a SLI setup with the SLI framerates. I no longer get shadow issues in most games also.
I ran some other tests and several things from these drivers have become apparent.
1) They make my games run amazingly compared to the previous drivers (177.41s).
2) They are HORRIBLE benchmarkers, I lost X800 in the Vantage extreme preset using them.
3) I think they're worth it unless you are a serious benchmarker