We are starting a new program with Fellowship of Freethought called "Freethought Fitness". We are using Spark People for record keeping which has allowed us to invite people from outside of the Dallas area to join the program.
If you want to lose weight and become/stay fit then join the Fellowship of Freethought spark team for secular support: http://www.sparkpeople.com/myspark/groups_individual.asp?gid=51759
Let me know if you have any suggestions or questions.