i guess this sort of fits with the op ...
i shot a video with my camera ...640x ... 2 minutes, AVI format.
 It is 160meg in size. Will one of the listed free editors reduce that in file size, and still keep a decent resolution so it looks good and maybe save in a format that can be used on Youtube ?

Humankind has not woven the web of life. We are but one thread within it.
Whatever we do to the web, we do to ourselves. All things are bound together.
All things connect......Chief Seattle, 1854