>What are your opinions on the video on the D7000 and D5100? >Is it worth it? Or would one be better off buying an actual >video camera? >Does having a video option on the Nikon hinder what the camera >can do?
Unless you're spending a whole lot of money on a video camera, or just want to point-and-shoot camcorder style, I like shooting video on a dSLR better. I've shot a bunch, including some concerts, with my D7000 and the ME-1 microphone, but only a little video with my wife's D5100, and the results are surprisingly good. The large sensor gives you a much better shot at using selective focus, which is such a basic tool for the average dSLR shooter that it's a natural extension to video.
Not needing to haul around an additional video camera is awesome, too. I tend to have a backup camera with me always, usually a Canon G1 X, which also has video and a largish sensor, so I have little need for a "real" video camera.