Big Bad Zero, put out by Eureka. Seen these guys live tons of times, they are just pure driving rock with great lyrics. Through their site(bigbadzero.com), you can go to mp3.com and download some tracks off their new album.
Angie Aparo, who isn't an indy guy, but definitely unknown. Picked up his CD "The American" for 50 cents in the bargain bin at a record store.. have damn near wore it out listning to it. AMAZING hook-driven pop rock.
Four Star Mary, probably best known as the band behind Dingoes Ate My Baby off Buffy the Vampire Slayer. Some really good radio punk-influenced rock.
"You can save the planet, I'll save your seat"- Uncle Kracker, Better Days