Suggest you go to U of Texas website & learn all you can. Student body is currently about 60,000, the largest in the country.
http://www.utexas.edu/Here's a link to this last spring roster. This will give you an idea of "pedigree" of players...
http://www.texassports.com/index.php?s=&change_well_id=16&url_channel_id=18For 2005, there were 30 on the Roster, 6 of whom came from out of state. Primarily the players come from Austin or Houston areas.
Typically they sign 15+. Some are sent to JC's, others redshirt. Occassionally a freshman starts. The Draft may take a couple.
Scholarships can be as little as $100 athletic to combination academic/athletic. Pitchers receive the most $$$'s.
It is serious baseball!