Windows Vista SP1 - RC1 is available

I've been running Windows Vista for most of 2007. It's been fine, but I really didn't need to upgrade to Vista.

I've been considering going back to XP, but now I hear Service Pack 1 is being released. It seems to be nothing more than a roll up of the various updates over the last year. Well, I have them all.

Should I apply SP1, drop back to XP, or do nothing an continue as is? I'm not sure.

Paul Thurrott has some info on SP1 on the Windows SuperSite, in case your interested.