You could maybe try Lamb of God, Hatebreed, Otep or Crowbar for your metal fix. And I'll sling another recommendation for Devin Townsend in there, too.
Jesus H, dork. Pyrrhon kicks my hairy hiney in a big way. I've been spreading the good word a bit today, hope there's a few dollars in it for the band.
I agree with most of the recommendations so far but haven't seen: L.E.S. Stitches (NYC punk) The Threads (NYC punk) Darkest of the Hillside Thickets (Lovecraftian surf-punk) Threats (Scottish oi) The Plank Boys (defunct punk-rock) ... I had at least two more when I started this.
Four songs of errata because your time is not unlimited.
"Straight American Slave" by Rocket From the Crypt Stax Records, played by Southern California reprobates.
"Belly Full Of Hell" by Planes Mistaken For Stars Frank Sinatra described rock as a "foul smelling aphrodisiac." He didn't know it, but he was talking about Planes. Video has kids fighting in it.
"Light and Solitude" by Envy. Japanese post-screamo. Beautiful and towering in the same breath.