My desktop has been running pretty well for two years without reloading windows and I finally have the chance to clean it up with a reformat. I contemplated installing Vista as the main OS but I'm not quite ready to give up on XP. Vista has an attractive interface and is a touch more secure than XP, but it's just not worth the driver hassles. The last installation of Vista had a crazy hibernation problem that caused graphics problems upon wakeing up. I know that I'll eventualy have to move up to a new MS OS, hopefully Windows 7 will be a bit better.