I upgraded to Windows VISTA Business last week. A 7 year fast forward from Windows 2000. Windows2000 is being phased out as new services don't work with it or are not supported anymore. However, I am now received a message from a website that I can not use their latest player as they do not support Vista.
Over all, VISTA business is OK. Nothing wow about it. It works, still crashes on hibernate too much for my liking. The biggest difference is the new screen on the Vaio. I am not sure the new screen has anything to do with Microsoft except the new icons are 3D'ish.