Just a couple of questions:
1) What's the specs of your new computer?
2) What kind of work do you do with it?
If you just want stability, and you don't game a lot, then you might as well stick with Win2K. But, there's a lot of features that make Windows XP special. Here are some links:
<A HREF="http://www.geocities.com/btvillarin/WindowsXP/links.htm" target="_new">Other Windows XP-related sites</A>
<A HREF="http://www.techtv.com/callforhelp/projects/story/0,24330,3355460,00.html" target="_new">TechTV | 50 Things You Didn't Know About Windows XP</A>
<A HREF="http://www.geocities.com/btvillarin" target="_new">My Website</A>-<b>reorganized</b> & updated everyday