Get some MCR, Seether, Nickelback, and Rise Against. :P
I think my music nerd brain just popped.
As far as metal goes,
Dimmu Borgir
Kovenant
Slayer
The Berzerker
Dir En Grey
If you're open to more music, here's a good list:
Placebo
Queens of the Stone Age
Crystal Method
Chemical Brothers
Sneaker Pimps
Massive Attack
Interpol
Amon Tobin
Arcade Fire
Nada Surf
Emotional Joystick
Shiny Toy Guns
Voxtrot
White Stripes
Broken Social Scene
Arctic Monkeys
VHS or Beta
Alpinestars
Of Montreal
The Flaming Lips
Justice
Digitalism
Death From Above 1979
Ima Robot
Mutemath
The Shins
The Hives
Unkle
At The Drive-In
Moving Units
Four Tet
Subtle
Ratatat
Depeche Mode
Undersound
!!! (Chk Chk Chk)
Elliott Smith
Beck
Statistics
LCD Soundsystem
The Verve
Auditory Aphasia
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