Video editor?

[mark3]

My parents' 50th anniversary is coming up and I want to put together a movie (5-10 minutes) of family pictures and (Youtube) clips + adding music from my own collection.

I have never done anything like that before.
Any advice on which editor to pick? I don't mind paying for one if it's good, as long as it's reasonable.
I have looked at Magisto, VideoStudio and Animoto, but it's difficult for me to make an informed decision when I really have no clue ...