Microsoft's Windows Moviemaker is a great, free video editing program that you're going to love. You're going to be able to make some stunning home videos that will impress all of your friends and family.
It takes a little getting used to, but hopefully my video tutorial below will get you started. Please feel free to ask me any questions about it. The learning curve can take a few hours of trial and error, but after you play with it a while, you're going to get very confident with it. You'll be posting innovative movies on Youtube and Facebook in no time!
If you have any questions about it, just comment in the comment box below and I'll try to answer back as quickly as possible.