Depends on what kinda metal you like.

Heaven Shall Burn.
The Crimson Armada
The Eyes Of A Traitor
Rammstein
Between The Buried And Me <-- FRIGGIN AMAZING BAND.
Beneath The Sky
As Blood Runs Black
As I Lay Dying
All Shall Perish
Suffokate
Apocalyptica
Kalmah
Within The Ruins

this is mainly the stuff i listen to. its fairly heavy BUT. it does have softer aspects to some of their songs so its quite diverse. all really good metal bands ENJOY!

dying fetus, slayer, pantera, rammstein, lamb of god