If these guys have been mentioned here before, sorry. I just ran across these guys from Canada and really like what I'm hearing. I guess you could classify them as 'Stoner Metal', tnough they have something a little different on offer...at least to my ears. They have the obvious Sabbath, Zepplin, etc. influence, but I also hear things like Uriah Heep in their sound too. Great riffage, very melodic. Their website sucks but here is their myspace addy for a taste of their music.
http://myspace.com/priestessband
http://myspace.com/priestessband