after you find a model you like, you can go here and find out all the info you want/care to know about it!
http://www.camcorderinfo.com/
this is where i went this spring and did all of my research before i went and bought mine.
personally i would get a mini dv instead of a dvd camcorder for the simple fact of price and "most" dvd cams you CANNOT edit/record over previous video without copying the dvd to your harddrive anyway!
and there are a few cams out there that record to a mini hard drive.......but you better have a WAD-O-CASH for them!!!
good luck and happy hunting!!
Morabu