[EricH]

I have a couple, and I think one will make your life easier and one harder.

The first is that traditionally, there's an A/V box behind the curtains at regionals. If there is one at the events you're thinking of, all you'll really need to do is plug into that, instead of getting your own cameras. (If there isn't one, or if you don't want the view that the audience sees, then yes, you will need to supply your own camera(s).)

The second is that you will need internet access, which at many events can be a little tricky--talk to whoever's putting the event on to see if you can get some. At official events, the field gets priority on internet access, FYI.