I was saying about the digital handycams that take pictures some time ago, but their quality apparently is a bit shit.
On the other hand, from the other side we now have the Digital Cameras that can take video, and HD video in fact. Eg,
Nikon D90, that can capture at 720p
And the Canon 5D Mark II, which can capture at 1080p
Which are very very interesting, because those are of cource, perfectly good and full DSLR cameras first, and so have a big lens, and in fact can have in front of them mounted any other lens, like telephoto, fish eye etc, and their quality, as I understand it, is awesome.
They only have two small problems:
A) Storage. Handycams now cam with 60 and 80GB internal storage, while digital cameras still rely on SD cards which are about 8ish or so.
B) If you have to ask how much they cost, you can't afford them. In fact you will probably be charged for the question alone.