Games Without Frontiers (if Rockahula counts... LOL), and Gimme Shelter. I liked their covers... also dug their Numan track - but Games and Gimmer Shelter for the win.
That being said, I agree with the "stones throw from BRA/GCM" comment - and I think that's why I always liked the weird experimental bits... they're not "brilliant" - but I like listening to their sketches.