Any Josh Homme band is open video as well (Queens of the Stone Age, Eagles of Death Metal and Desert Sessions). Also, Nick Oliveri's stuff is as well when he plays (Mondo Generator). Pretty much anyone that runs with those 2 guys are open taping/video. Just make sure you talk to Hutch before hand, and he'll hook you up. Hutch is the Road Manager/Tour Manager for those bands. Other bands like Dredg, Mars Volta and Clutch are open taping/video as well. If I can think of anymore off the top of my head, I'll shoot them to you in a PM.
Benjamin