Danny Carey from Tool. They're my favorite band, and he has an amazing kit.
It's a joy to watch him play live. But then, it's a joy to watch Tool play live in general.
Actually when I saw them back in July, Danny did a mid-song jam session with the drummer from their opening act (Big Business). Lasted for about five minutes. The amazing thing was, the kid had what I can only call the Smallest Drum Kit Ever, and really played well with Danny. It was a great thing to watch, and no one complained that Lateralus ran for a good fourteen minutes that night.