I'm against listening to Amiga music on this crappy laptop PC, but here's the first music that truly amazed me: Amberstar intro music. Let it play for a while, until full percussion starts. It's SO f**ng epic!! European RPGs from the 80's and the 90's... no personal computer should be without games like these!
http://www.youtube.com/watch?v=lxlH6y-_Cww&feature=relatedDon't listen to it in a lame laptop, it loses all it's powerful pumping sound.