Yeah it can do high definition. The one I have is a Panasonic HVX200. Instead of using the normal P2 cards for the high definition recording though, I have a 100gig external hard drive that was manufactured specifically for this camera(i think) that it can record to. I also have a boom pole, boom mic, storage / carrying case for the camera and camera accessories, and several other items for doing films.
Let me know if this is something you're interested in, and I'll get you the details on everything. The camera has only been used for 2 weddings and a short film. So it is still in extremely good condition.
EDIT: Yeah sorry I've been busy at work today, wrote this thing at like noon and just now posted it :x