"Would I be wasting money buying a D7000 not just for video, but as a more compact travel camera and video camera?"
This is exactly what I plan to do, in conjunction with my D700 and my Sony 550CX. (I think Stan's rant was a bit intense, addressing issues that were not found in your original message. And it also focuses on only one area of video production, one which I don't happen to be interested in ). I would like to spend a month of so working with video on the D7000 before I take it on an extended workshop later this fall. Hope it ships in time! Best, D.