Jeff and Klynton of PuppetLabs will be in town, and have offered to come give a talk. I asked them to speak about module testing, since I haven't heard any of our locals say they're very comfortable with it (that includes us at Backstop), and I certainly think we could be better at it :)
New folks: don't be scared off by the seemingly-advanced topic! I really wish I had known more about the testing possibilities when I got started.
Backstop will be providing food and drinks, so all you need to do is come and have fun.