The price to beat seemed to accomplish its goal of attracting competitors to the market during the period through January 1, 2007. It allowed competitors to enter the market without allowing the incumbents to undercut them in price. It has also given energy consumers the ability to compare energy rates offered by different providers. The less-regulated providers undercut the price to beat by only a small margin given that they must balance lower prices (to attract customers and build market share) with higher prices (needed to reinvest in new power plants). Due to the small difference in competing prices and slow (yearly or so) "buying" process, price decrease due to competition was very slow, and it took a few years to offset the original increase by "traditional" electric providers and move to lower rates.
Power to Choose is a program run by the Public Utility Commission of Texas. Its goal is to protect residents of the state from unfair energy costs and unregulated REPs, as well as develop a strong infrastructure. The program provides an easy to use, online tool that give residents of the state the opportunity to compare rates, plans and other energy options. Keep in mind though, you really need to read the fine print if you decide to use Power to Choose (or any other service, for that matter).