Here's some dope Underground Southern Rapper's I found, Bionik Brown and Impulss. Anyone heard of em'? You can listen to some of their music below, Bionik reminds me of an early Eminem vocally.

http://www.cdbaby.com/cd/impulss

http://www.soundclick.com/bands/0/bionikbrown.htm

http://www.soundclick.com/bands/8/luckystiffsmusic.htm