I'm doing a lot of research for one myself at the moment so I might be able to assist.
I myself am waiting to see what JVC brings out in the HD range, and HD cameras have better than MiniDV quality (which isn't as good as people think) but still records on the MiniDV medium.
The Sony
models interest me, but only really because Sony tend to use a lot of JVC technology so I'd like to see what the main technological and price differences are when it is released.
That said, JVC make some excellent
models that have mediums like CF cards and hard discs.
The DVD
models irritate the hell out of me because more of then not, the DVD's are speciality discs and are overpriced (typical, eh?) and Digital Hi8 is for all intents and purposes dead, and the 3CCD may well be cool, but it's there for improved colour, not so much improved quality so it essentially comes down to this:
3CCD MiniDV or HD MiniDV.
I don't know about you, but I'd take either a 3CCD that records on medium like CF cards or a HD camera that records on MiniDV.
They're really the only options I'm looking at after my research.