Should you find yourself craving some music that invokes thoughts of invading demonic hordes and the valiant deeds of archangels, then you might want to pick up the official Diablo III soundtrack or The Music of Diablo 1996-2011 now that they're both available from iTunes for $11.99 each. The former sports 23 tracks and the latter spans 17, so I think the prices are pretty reasonable if you're a Diablo fan.