MAGIX Movie Edit Pro Premium - Overview
I've been using MEP since 2003. Fantastic program; quirky sometimes, but a delight to use when you get the hang of it. There are lots of tute videos around the net for it. Try the trial (from the Free Downloads tab); video formats/codecs are many and varied and you'll need to install
Quicktime to enable MOV support. In Quicktime, deselect all formats except MOV format.
There are 3 versions; MEP MX Plus would probably be the best for you.
Be prepared for a vertical learning curve but after that, the video-editing world is your oyster.