Not sure what was mentioned on the other threads, but:
Unearth is the best metal band I've ever heard (not to be confused with the wretched Underotah)
Darkest Hour
Fear Before the March of Flames
Every Time I Die (weird mix of metal and ... other stuff)
Norma Jean
etc etc etc
Oh, Sleeper just released a great album. They remind me a bit of norma jean but are still pretty origional.
An incredible metal blade records band that just got signed is Knoxville's own Whitechapel. I've seen them since they first started and they are great if you like death metal and grindcore.
MySpace.com - Whitechapel (NEW DESIGNS IN MERCHSTORE!) - Knoxville, Tennessee - Death Metal / Hardcore / Grindcore - MySpace.com - Whitechapel (NEW DESIGNS IN MERCHSTORE!) - Knoxville, Tennessee - Death Metal / Hardcore / Grindcore - www.myspace.com/whitechapelmetal
