I previously used to use Traktor's final scratch when I started, but them moved into the video side: VJing and had to find software for that. I think this was one of the first to do it and been with VDJ since.
In the clip bank is it possible to see how much of the video has played / how much is left. Either a clock timer, or a status bar would be handy.
Also the ability to skip to a different part of the video clip would be handy. I've got a few that have weird or unwanted intro's and without using video editing software I can't do anything about showing them on the screen.