Live Albums

Blitzy, if you can find Lifestyles of the Broke and Obscure, then that's the live album and their last studio album packaged together as a 2 CD set. You should be able to find it online somewhere.
 
Past Lives : Sabbath 2nd cd just for Megalomania Live........
Other mentionables .....

Live & Dangerous : Thin Lizzy
Live after Death: Maiden
No Sleep till Hammersmith: Motorhead.
Just Say Ozzy: Ozzy
AC/DC : If you want Blood.

To avoid dunno have a few bootlegs sound like there been recorded through a tennis shoe.