Check out Michael Giles on King Crimson's first album, In The Court Of The Crimson King, An Observation By King Crimson, and also Andy McCulloch on King Crimson's third album, Lizard.
Hey Texan, I'm also a big fan of Lee Kerslake... He wasn't the best soloist, but he was a bear, who was about playing the song and composing his parts in the rhythm section with Gary Thain.