Prosumer DV cam question ?

Hi guys,

Just wondering if any of you have prosumer DV cams & if so can you let me know if the size & quality of screengrabs can be compared to say for example a 3mp digital camera ?

I'm looking for a decent camcorder that I can take screengrabs off the footage rather than a digital camera (already have a DSLR), as with tape you can pick the particular image you want rather than a photo taken with a camera.

TIA