The songs that pump me up the most: Achilles Last Stand [Led Zeppelin], Endless, Nameless [Nirvana], or Master of Puppets [Metallica].

Most relaxing song ever: Venus in Furs [Velvet Underground].

The Cure's "Lullaby" and "The Figurehead" also relax me a lot. Bringing me down to that "remote control three feet away is too far to get up" type of mood.