I don't know anything about TX schools but from his stats I think he should have a decent shot. I would shoot for at least a 20 or above on the DAT to be more competitive. I got in with a lower GPA than his, higher DAT, and similar EC's. Apply broadly to as many schools as you can with good out of state acceptance rates.
This book will have all the info you need:
http://www.adea.org/officialguide/