I want to know whether there is a free video editor available which has more features than Windows Movie Maker?
Also, have a look at the following post
5 Easy-to-use Freeware Video Converters
I would look into Wax 2.0
There's a learning curve, but Youtube should help with that. For filters look at VirtualDub and VirtualDubMod
Windows Live Essentials Movie Maker.