West Texas A&M in Canyon has a good one with a great coach in Don Carthel. They used to have Ryan Leaf to work with Qbs until he got in trouble for drugs, but its still a good camp, and a good team to play for if they like you enough. I know theres others but this is the closest one to me, and I went for 4 years until my sophomore year.
http://gobuffsgo.com/sports/2010/5/17/SUMMER_CAMPS_2011.aspx?
