I have just about everything working on my system except for my 8800GT. I used NVInject to install kexts and such, and I can change screen resolutions and all that. The only problem is that graphics get corrupted a lot, almost as if the card is artifacting. All I have to do to get the corruption to go away is move the window that it's happening in, but it's pretty annoying. Also, I can't do any 3D graphics... that means no Front Row It happens in text boxes too. I've tried to screenshot the corruption, but it never shows up in the saved images... any ideas?

EDIT: EFI Studio is amazing. I used it to modify com.apple.Boot.plist and now I have full Quartz Extreme and Core Image support, with no bugs!