I want to multi-boot many distros?
UEFI comes from a rather doubtful parentage (M$ & Intel) and I think it settles on your multiple systems. You _may_need_ UEFI for windows 8. If not, it's drm in disguise from what I read of it and I for one want to avoid it as long as possible. I read some guy from AMI talking about it.
If UEFI becomes mainstream, there will be a forum here for guys who have locked themselves out of their own systems in all likelihood, or guys who have a 'genuine' m$.doc that they cannot read on a 'genuine' pc.