Wow, you guys are STILL having problems with vista???
I have been running Vista 64 for at least 3 months on the current install and have had no problems at all (once I disabled driver signing and a few other things...). In fact my vista 64 install is much faster than my XP install. I dual boot and test quite a bit now...
I will admit too that under "straight" installs, XP does outperform Vista. Until you turn some of Vista's "new features" off. Which are stupid IMO and not needed anyway. Vista (especially 64), with the right know how, can easily be tuned to outperform XP.
And I just recently dual booted with XP and I would say I DONT miss XP anymore. I can install Vista 64, drivers, and updates now faster than XP too.
Now if M$ would fix the problems for you all that I managed to fix for me, XP would be a thing of the past. Who can argue with 8 cores, 12GB Ram, and 7TB of HD's... All under 64Bit Flawlessly...