Public hunting land here in Texas is an iffy proposition. Where it's available it can get overcrowded quickly; I've heard some pretty scary stories of people being shot at on public land.

You might get some good info here: http://texashoovesandhorns.com/6/ubb.x

One thing about San Antonio--there are a lot of hunting lodges around that offer hog or exotic hunts. Sometimes you can get a pretty good deal on a management hunt.

Good luck, and I offer my best wishes to anyone who wants to escape California!