There is good info at the PHSNE web site; http://www.phsne.org/ with a photo gallery of the last show http://www.phsne.org/lastshow.html. There are apug members to be seen in some of the shots.
If you like cameras and photographic stuff, it's a good place to see a large selection. There is everything from run of the mill Kodak folders and box cameras to unique treasures.
I've always had a good time, and often have come away with some good deals. Sadly, I have a conflicting engagement that weekend, so I won't make it this time around.