I often do simple edits of video files on the video tracks in nuendo 6.0.6 if working on a section or wanting to trim test signal or clock off the front. Nothing fancy - just using the same edit tools as I do when cutting and trimming audio files.
Big plus 1 for the QT movie export function! I wish I could export QT previews for clients. This is a daily pain in the back.
Cheers.