I just installed a 25GB partition on my MBP for Vista Ultimate... I had previously been using Parallels to run Vista & XP Pro. So I just opened Parallels to update it... and it popped up and said it could use my 25GB Vista partition! Im sure this is not a new thing... but I just discovered that I can boot into Vista via BC... -OR- use Vista while in OSX via Parallels... from the same partition! This is a VERY cool feature! Just wanted to share it with anyone who may not have already been aware of it!