Project Sentry Gun will have a booth at the World Maker Faire, in New York City, on September 29 & 30.
If you are in the area, please come visit! I am looking for some people to bring their own sentries to set up at the booth in addition to my two - if you are interested, pop me an email (projectSentryGun@rudolphLabs.com). Even if you can't bring your sentry, stop by and say hello!
The Maker Faire is generally a big convention for DIY'ers, with a large focus on Arduino and robotics. More info here:http://makerfaire.com/newyork/2012/index.html