Yes, fail OS is fail. Windows 7 or BSOD.
I've never had problems with either ATI or nVidia, but my overall experience with nVidia has been better. In any case, I just recieved a magical infusion of 5000 bucks, so I'm thinking of a total system overhaul. Whether I do or not remains to be seen, I'll be deciding in the next few days after pricing it out.