Ignore the people who say you can't get good mattes from DV originated material. If you are using a 3 chip camcorder, you can achieve excellent results, if you either digitize in analog component output, or input your video through the firewire port.(posted 9055 days ago)The chroma resolution is an issue yes, but that is like saying CD recordings are bad because they aren't digitally sampled at 48khz. I've done it, and it works fine. Remember, DV as a recording format has better chroma resolution than betacam, which people have been successfullly creating mattes from for a long time.
More important is the quality of the camera you are using, and the signal to noise ratio. But a VX1000 works just fine.