The Beta Bar
http://www.thebetabar.com/calendar.htm
As a venue I think that the Beta Bar is dirty and poorly planned, but it hosts some bands that are well worth the sacrifice. Notably, Band Marino (from Orland0), The Ums (Tallahassee natives) and Look Mexico (also Tallahassee natives) usually play shows at the Beta Bar. Check out their calendar for the full schedule of concerts, including some I might not have added to this blog's calendar.