Certainly I am. There's no real risk involved. I'm confident that I can get it working with some help from teh internets! Whether I can get it to work in OS X remains to be seen. Apple have to be made to realise that the Intel transition cuts 2 ways. I used to be tied to OS X as much by my hardware as by my choice but I can now switch to windows (XP: I may be annoyed, but I'm not stupid!) or linux any time Apple aren't delivering the goods! My Mac Pro already triple-boots.
Last night, as an experiment, I formatted one of my four hard drives as FAT32 and moved my iTunes library over. I can now use iTunes (OS X), iTunes (XP), WinAmp (XP, including milkdrop 😎 ) and Rythmbox (Ubuntu 64bit) to play my tunes. If I can't get my 8800GT working in OS X, then I can see more files being moved to this "multi-boot readable" section of my system and OS X becoming less relevant to me by the day.
Some may see this as "cutting my nose off to spite my face" but it isn't. At the end of the day, I can do what I do (Theoretical Chemistry/Physics based Nano-science) on any operating system. I will not allow the choice of that system to cripple my hardware.