[HighProtein]

Crisis http://www.crisissite.com
Dream Theater http://www.dreamtheater.net
Fates Warning http://www.fateswarning.com
Iron Maiden http://www.ironmaiden.com
KMFDM (has some metal tracks) http://www.kmfdm.com
PIG (has some metal tracks) http://www.raymondwatts.com
Spiral Architect http://www.spiralarchitect.com