http://youtube.com/watch?v=wz_L0wlLcVM
Check out the above video. It's absolutely insane the stuff Mike Mangini does and he makes it all look so easy. I think that he's one of the top drummers in terms of raw speed and limb independence.
Check out his CRAZY fill at 5:50.
I also think it's great that he's having so much fun behind the kit with all of his goofy facial expressions.