SMJ,
Friday is not as crowded, but not all the vendors/exhibitors are set up either. And there are fewer seminars. Saturday is pure sensory overload. Guns, people, accoutrements...
I generally try to buy the things I need on Friday, then visit and hit seminars on Saturday.
You can buy just about anything related to black powder you want at the fair.
Camera is probably a good idea, don't know about the camcorder, though.
Dale H