chelsea grin is good but what about hardcore like hatebreed or death metal like white chapple?

Suicide Silence
Despised Icon
The Acacia Strain
Spineshank
Soulfly
Nothingface
Go.at.wh.or.e
Coal Chamber
Slipknot
Six Feet Under
Otep
Hatebreed
Amon Amarth
Roadrunner United
NIN
Bloodsimple
Demon Hunter
Dethklok
Soil
Bury Your Dead
Skillet

...sooo many other, these were just off the top of my head, lol!

@rapta256" bro those are all good too

my top 5 are:

chelsea grin
winds of plague
belie my burial
august burns red
texas in july

theres so many awesome bands out there though

From the top of my head ones i love

Suicide Silence
Slipknot
Skillet
Parkway Drive
Bullet For My Valentine
As I Lay Dying
All That Remains
Eyes Set To Kill
Bury Your Dead



and so much more ...