When I was living in NJ, I always thought the same thing. There really aren't a whole lot of tech groups out there, at least not meeting publicly. I had wanted to set something up for awhile, but couldn't get anyone interested unfortunately. Around that time FUBAR Labs
started up though, and they seem to be doing pretty well for themselves.
I think I am a little too far out to participate now (I have since moved into PA), but good luck with the group. The site looks great.