I used XP for about a week with FAT32 on one hard drive (it previously had 98 on, and i was transferring data from it to the NTFS drive XP is installed on... and for that week it had no problems!!!

Not exactly a long time, but...

Also, I've run Win2K with FAT32 for months no problem (though I've run it for the best part of a year on NTFS with no problem!)

And I agree with the post about linux... If I didn;'t have to maintain compatibility with my friends who use MS Office, and if I didn't play computer games that need Windows, I'd have moved to Linux completely... alas I need to use Windows, even if it is just to play Unreal Tournament! So i have a few computers, with different OS's on each, that way I get the best of all worlds!