Seger--Just saw him last night and he's still going strong.  I can only imagine what I missed of his live act in the 70s and early 80s.

J. Geils--Though I like their blues and funky sound from the early days, I'd like to hear one of their concerts from the "Sanctuary" tour in 79-80 that blended the new and old.

The Boss--never too much Bruce.

The Police--there's got to be something good out there from one of their tours.

Van Halen (but only with David Lee Roth at the helm)--one of the greatest hard rock bands of the late 70s-80s.

Romantics--new wave (or garage rock) at its finest.

REO--pre-Hi Infidelity.