Who here is getting the Ozzy Osbourne 30th anniversary box set? These remasters are the "definitive" versions of the Blizzard of Ozz and Diary of a Madman albums with better sound and previously unreleased bonus tracks. You can get the albums individually or as a special box set. The legacy edition of Diary of a Madman includes a bonus CD of previously unreleased live performances, featuring Randy Rhoads.
The big box set comes complete with remastered vinyl and CD editions of Blizzard of Ozz and Diary of a Madman and lots more including a 100 page coffee table book, poster and DVD among other things.
Here's some footage from the DVD in the deluxe box set called Thirty Years After the Blizzard. It is truly great quality.
In case you are wondering, all this awesomeness doesn't come cheap. Looks like the deluxe set is $150 bucks. Check out photos, a full track listing and order through Ozzy's MyPlay Direct site.