The show involves all the suppliers for Henry's Camera shops, with booths from Nikon, Canon, and all the others (camera, lenses, flash, equipment, etc). A cool feature of the spring shows, which I assume will also happen in October, is a sort of Garage sale, where Henry's sells off all the demos and floor models at great prices. You can't wait that long to get a camera (and there probably won't be any newer Nikons) but is is great for getting a flash, tripod, lighting kit, or any of the other toys you will be needing.
More important, there is a continuous stream of training sessions, geared towards both pro photographers and serious amateurs. You can pick up some great tips attending these.
And now for the best part. The admission is $20 at the door, but this link will take you to a place where you can get in free (see the link at the bottom of the page).
