I loathe vista
I'm yet to see one tangible benefit over a previously rock solid fast loading optimised XP setup.
After I'd turned off the various flashy graphics, user account control and other crap I didn't want with vista, I had an OS that looked like XP but functioned worse, with heavier load on CPU and RAM. Which sucked.
If you've got RAM and CPU to spare fair enough, personally I'd just reinstall XP over Vista though.