My wife just surprised me with Slayer's 4-disc 'Soundtrack to the Apocalypse' set. It's about a $60 investment and worth every penny!!! Remastered older stuff, unreleased songs, limited release songs, dvd footage dating back to 1983 and just awesome! Garage recordings, interviews and a 50+ page booklet with quotes and killer photos.
I have been really into Lamb of God and "Terror and Hubris" lately, but this is too good and harkens back to a day when it was all new and you could say, "Slayer is the fastest and most evil band ever!"
If you have not gotten it, save up and do. It's chock full o goodies for any Slayer fanatic.