Vista is suppose to be more secure than XP and a few more features espeacily if you get the Vista Ultima.
There is a lot off features that XP has that I do not use, and now vista has even more that I may not use but they are there and with all the neat things that vist does areo affect.
I thought I would never leave Windows ME but if I wanted to use the full potential off the computer I had just built I had to go to XP.

I will build A new computer or upgrad My hardware soon and I will most likely go to windows vista.

Good Luck with your choice:

Wendell H