Thank you all for your help and suggestions.
I do already have a camera (GoPro Hero2) and plenty of mounts for it, so I think I can work with that to suit my needs.
Also, I think what I would do as far as talking about maneuvers and ATC and stuff would be just mentioning them. I don't think I have the competency to teach it. Since I'm in my instrument training, I think I'd just talk about SID's and STAR's, explaining why I'm doing what I'm doing. Still, this is all in the works and may or may not happen. I'll have to try it out and see.
Recording flights A to B is definitely something I'll want to do.