I'm using Vista now. This may sound wierd but my PC is actually running faster than it was when it was on XP. The interface rocks too!
A few screenies:
I rotated my resolution 90 degrees to the right, flipped my monitor on it's side and took a screen:
http://www.imagemule.com/uploads/ahahahahP0uR.jpg
Normal view of vista:
http://www.imagemule.com/uploads/vistaktIy.jpg