Loved the Shirts -- great live.
Boston: The New Models (Casey Lindstrom guitarist -- he's the guy playing the lead on "Something to Grab For" (Ocasek). If you ever heard Casey play, you'd recognize it immediately. Fabulous live. Their record, if you like that sorta thang, is worth a listen. Really obscure: The Lifters.
Chicago: powerpop/punk/whatever would be Epicycle. I've got a copy of a pretty good article 'bout them but link is gone now. Good thing I saved that. Because of their age, the crowd could sometimes be pretty wild.
Also, Screaming Rachel Cain and the Remote (they were fun live)
Melissa