For the DFW Area:
Fort Worth Chapter Wellington Johnson Lone Star Camp is May 16-18 at Weatherford HS, registration info will eventually be here:
http://www.fortworthref.com/index.html
North Texas chapter has a good camp too - last year it was in Argyle & Denton, keep an eye on their site:
http://www.ntboa.org/
I'd keep an eye out on the TASO website, hopefully they'll put up a list of Texas camps too.