I've been running XP Pro for about a year I guess...maybe a little longer...I have had overall good experience with it. The main thing I found is don't be cheap on memory. I run a full gig and my desktop flys...I can d/l large files, play music or watch a video in a 'corner screen' have explorer up and three layers into a spreadsheet while also remoting into the servers at work for some mainantaince.
It's been much more rock solid than W2K was.
Also the Restore feature works really great also...where as under 98 and even 2K, it sucked hind tit.
Just my opinion....
dww