Phil anselmo (pantera singer) plays guitar. hes actually pretty good. go on video.google.com and search pantera and look for a concert of them in London. Search for it by quering long videos because its like an hour and a half video but skip to like 45 or 50 minutes and phil picks up a guitar and just shreds. then he goes into Raining Blood. its good stuff. I had no idea he played guitar... let alone that good.
He probably picked it up from hearing dimebag all that time
Theres also one of Dimebag on vocals and Phil on guitar, playing the four horsemen.