I have software that I use to edit my vids, but I either paid for it or it came free with my computer so that won't be of use to you. I did a quick quick search for free video editing software and this one looks promising:
http://www.virtualedit.net/home.htm
The offer a free trial version of virtualedit to non-commercial/non-profitmaking users; this free version doesn't appear to have any limitations, they just want to receive payment for users who use it to make money.
Please note that I haven't used it myself, but from their web-page it looks like it might be what you're looking for. If you decide to give it a shot, let us know how it worked for you as I'm sure that there are many members who are looking for quality free video-editing software.
