Pink Floyd, and other music of most genres, but really it is all about the Floyd.
My System
It's an ever changing work in progress until the day I can actually afford Klipschorns all around :), but I have an Onkyo TX-NR515 receiver, Klipsch Heresy II as fronts, RC-25 Center, R15Ms for Surrounds and a 10" Polk junk sub. Like I said, work in progress.
