Funny you should say that, I am only keeping my XP right now to continue running my Ableton Live and all the VST's! Specifically, my CME instrumental keyboard does not have an appropriate driver for Win7 OR Vista for that matter.
On a side note here's one of my Ableton projects from scratch
, hit the 'HD' button for better sound quality......
[ame="http://www.youtube.com/watch?v=1gMsUvQkPZM"]YouTube - "Teecas" - My First Ableton Live Project - Trance Genre[/ame]