Almost every band I have ever enjoyed in handy alphebetical order
30 Seconds to Mars, The Absence, All That Remains, Amon Amarth, Amorphis, As I Lay Dying, August Burns Red, As Legend Has it, Atreyu, At the Gates, Arch Enemy, Avenged Sevenfold, Axenstar, Becoming the Archetype, Behemoth, Besieged, Blind Guardian, Bullet for my Valentine, Cannibal Corpse, Children of Bodom, Death Angel, Demon Hunter, Devil Driver, Destruction, Dimmu Borgir, Disturbed, Dope, DragonForce, Dream Theater, Evergrey, Evile, Exodus, Frost Like Ashes, Gallows, Grave Digger, Haste the Day, Horde, In Flames, Iron Maiden, Killer Buckeye, Killswitch Engage, Korn, Judas Priest, Lamb of God, Light This City, Linkin Park, Marilyn Manson, Marshall Law, Mastodon, Megadeth, MetallicA, Mors Principium Est, My Chemical Romance(got a problem with that?!), Nevermore, Nirvana, Opeth, Pantera, Primal Fear, Protest the Hero, Sacred Reich, Sepultura, Silent Civilian, Slayer, Slipknot, Soilwork, Symphony X, System of a Down, Testament, Trivium, Underoath, and Venom to name a few
(I wondered when this list would come in handy)