New school doing Yang Tai Chi just opened in my area. They have a school (that also teaches Wing Chun Kung Fu) and on weekends occasionally meet up in the park for free. Also, the instructor of the Tai Chi has a meet up for Shuai Chiao.

http://www.meetup.com/meditation-677/
http://www.texastaichi.com/

http://www.meetup.com/North-Texas-Shuai-Chiao/