XP does have a number of advantages over Win 2k, but not a ton of them. comparing Win2kSP4 to WinXPSP2, XP has better driver support, better security, and a better update delivery mechanism. XP is however, a bit slower (even after turning off most of the eye candy), though it's really minor. XP also requires activation, which can be yet another step in fixing/building machines. I use 2000 when building machines, since XP is really just a significant point upgrade over XP. Nothing that I NEED. I did make an exception for my mom, as XP's built-in firewall, finally made usefull in SP2, was worth the extra hassle. I do however, use XP at work; because that's what our gov't clients use. I use OSX for all my java development, writing, video editing, photoshop....basically everything else. yeah, count me in there, too.