I use Sony Vegas for video editing. It’s a great application: really simple, and somehow much more intuitive than Premier Pro or Avid.
By default, when you install it on Windows, it can’t read mov files, because Windows doesn’t come with the driver, so, sadly, you need to install Quick Time.
For some reason though, at least with my version of Sony Vegas (8), there’s a problem with the latest version of QuickTime, and Vegas can only get the sound, not the video from MOV files.
The solution is to install an old version of Quick Time. I’ve used 7.62 in my latest project, and that worked fine, so anything older than that is fine.