I really enjoy my ArDrone 1.0, and the ArDrone 2.0 is even better. It's a complete package, with the smartphone/tablet app showing you (and capturing) POV video. It's a simple, turnkey solution that works out of the box, and is a fantastic starter package before you move on to the more advanced stuff like kits and such.

You can't do much with attaching external cameras, but it does pretty good with what it's got built in.