I just trained somebody on Vegas Pro. But before we were able to get together, we got started with Vegas Movie Studio via remote desktop.
I was really impressed with the features available in Movie Studio (which is FAR less expensive than Vegas). I has some features dumbed down a bit (it creates a bunch of tracks whenever you start a project). The only think it couldn't do that was significant was paste cut content from one instance of the program to another.
It's not free, but then, neither are cameras.
http://en.wikipedia.org/wiki/Sony_Vegas_Movie_Studio