Tool, A Perfect Circle, Puscifer - all awesome, all involving Maynard. <3 That man has some amazing talent - along with the rest of the band members, of course.
Here is one of my fav APC songs https://www.youtube.com/watch?v=1KeoKKyl9Y8
I've never seen them live They were here recently, but I heard about the show too late and everything was sold out. Not that I'm into concerts really. But I'd go for them.