Dslr cameras that has the best video quality

What you should be asking is what DSLR with the basic accessories I need to shoot a music video with a $2k budget should I look at? To get a reasonable amount of the potential of a DSLR's video capacity you're going to need more than just a camera. Two good prime lenses (or a fast zoom), A mattebox w/rails (or at the least a good lens hood. A filter kit w/ a UV haze, a couple of ND's (2 & 4) and maybe a polarizer, a decent tripod (no wal-mart specials) with at least a ball-head mount, extra batteries (at minimum 4 extra), camera bag (that will hold most of your accessories), Fast CF or SD Flash media cards (class 4 or better, 8GB or larger capacity. *Note; smaller cards mean you'll need more to keep up with shooting) and a secondary viewfinder if not a small camera mountable monitor.