Well, I hate to admit it, but for the most part I agree with Beat. Though everything from AC/DC is still better than most everything else, most of the post Back In Black stuff is not up to snuff with the old stuff.
I do like the aforementioned Live album. Bon is better, but Brian is still very good. Angus can still rage, even without drugs. Malcum's Gretsch with it's chair-lift-cable strings still drives like mad and the rest of the band is as powerful as ever.
But if you haven't seen "Let There Be Rock," do yourself a favor and get ahold of a copy. The interviews aren't really necessary, but are kind of funny. Makes you wonder how they can play that loaded. The true mark of R&R pros, I guess. But the show...