There are several hot spots for disc golf in Texas. All the big metro areas have a bunch of nice courses.
I lived in Austin for a few years, if you head that way, I can recommend these courses. Circle C @ slaughter creek - top 5 rated for state on this site, scenic, challenging and with good hole variety. Austin Ridge Bible Church, a very challenging John Houck course with a couple holes having 100 foot elevation changes. Not sure if you're familiar with this designer, but he also designed the courses in Talco. Zilker Park DGC, more of an average course but near the heart of downtown Austin's night life. Zilker Park is in the crown jewel of the Austin park system and has amazing views of downtown. In addition, there are lots of interesting stuff to do besides disc golf including visiting barton springs. East Metro and Roy G, in the metro area are also top state rated courses, but i never played them.