Limp Bizkit
http://www.youtube.com/watch?v=GyAAwCu-Lu4
Morbid Angel
http://www.youtube.com/watch?v=W6ZVMQayzng
Cryptopsy
http://www.youtube.com/watch?v=sB_wCYF4BCM
Hexx
[youtube]watch?v=99b0Ofuptfk[/youtube]
[youtube]watch?v=V53gVGBx6kM[/youtube]