I too am an IT guy. I recieved a very interesting email from a Microsoft rep that was out discussing AD domain migration strategies with us. I was asking about some of XP's short comings in AD. His response to me POINT BLANK was (and I quote):
"It is our general recommendation, that you NEVER use a Microsoft OS until it has at least 2 Service Packs."
Now, bear in mind that this is a CORPORATE DESIGN ENGINEER that is a blue badge MS employee (that means his check says Microsoft, no contractor).
Just thought I'd share. And buy the way, if you can't see the differences between 2k and XP, yank the power cord clean out while the machine is on. With 2k you will get a blue screen and probably lose whatever you HAD, with XP, no worries. You can't see the differences, but they are different in the background.