First off... Get an ipod skin to keep it from getting scratched. And then, I recommend nightwish and rise against for rock.. and for hip hop i recommend biggie smalls, or tupac.
Mudvayne - Dig
White Zombie - Thunderkiss '65
Pantera - Domination and walk
Motorhead - Ace of Spades
Metallica - Seek and Destroy, Trapped Under Ice, Ride the Lightning.
Kiss - Detroit Rock City
Jimi Hendrix - Purple Haze
Iron Maiden - The Trooper and Run to the Hills
Hell yeah - You Wouldn't Know