There is a complete remaster of the Ozzy years with Sabbath called Black Box. All albums that Ozzy fronted are included in digipacks, and there is a very nice book included with the set.
Of course if you dont want to spend 60-90 bucks on the complete Black Box, there is a 2 (i think) cd set called Symptom of the Universe. It includes most of the hits and the remastering is from the same remastering sessions as Black Box.
Speaking of Megadeth, if your a fan you MUST seek out the Mobile Fidelity remaster of Countdown to Extinction.
