A few bands from my area are We All Have Hooks For Hands, an indie rock band that just called it quits that were decently large, there's Amos Slade, a great alt rock band. Fluxx, Tennessee Murderclub and Tetnis Flesh are some bigger metal bands here, and I personally know a few of the guys from Fluxx, they're great guys and their music is schweet. Oh yeah there's also that Spill Canvas band that got huge for awhile a few years ago, never liked them that much but was happy to see a Sioux Falls band hit the big time.