Bust out the mullets and the Pabst, and crank it up to eleven: Heavy Metal ($55) is a four-disc, limited edition box set covering the history of the genre. Tracks from Black Sabbath, Deep Purple, Iron Maiden, Judas Priest, Queensryche, Alice Cooper, Metallica, Megadeth and more make this the perfect Christmas gift for the Rokker (yes, Dokken makes an appearance as well) in your household. Oh, and the box looks like a Marshall amp. Awesome.