No Quarter - Led Zeppelin (Classic Rock) Raining Blood - Slayer (Hard Rock) Domination - Pantera (Hard Rock) H.
On the electronic front, here are a few songs worth checking out: "Forest Crunk" by Blockhead "Star Guitar" by the Chemical Brothers (Amazing video, too) "Loud Pipes" by Ratatat As for rock, I can't recommend the band Spoon enough. Great stuff: "I Turn My Camera On" "Don't You Evah" "The Underdog"
Electro? Rock? I do say good man, Pendulum fits this very well. http://www.youtube.com/watch?v=YZBQMJlVXyc http://www.youtube.com/watch?v=zENtEumtyBI http://www.youtube.com/watch?v=YWnpwV63KiY http://www.youtube.com/watch?v=DQA1d0QQvf8 http://www.youtube.com/watch?v=sF1rD0uB3S4