Kerzechtus
Power Gamer
That sucks. I've seen Opeth twice in concert. the first time was on the Deliverance and Damnation tour. The second time was on their Ghost Reveries tour. Really really great. The opened with 'Ghost of Perdition, Epically awesome song! I haven't cared much for the latest two albums, however. They also lost a great drummer.
Oh yeah, Nevermore Primus and Tool are all excellent, I agree. I you like Les Claypool you might like Colonol Claypool's Fearless Flying Frog Brigade. Or possibly Oysterhead; a side project he did with Trey Anastasio from Phish (i don't like Phish, but Anastasio is a very good guitarist) and Stewart Copeland from the Police.
Les Claypool is a beast, Warrel Dane and Jeff Loomis are awesome in Nevermore, Tool I don't know much about but I do have every ablum and skim through songs of interest since I am open to alot of music.