This is a great idea! For video-editing software a little research on the Internet should enable you to find something that meets your price/performance requirements. My personal choice is Camtasia from TechSmith.
One suggestion that may be helpful is to research "Ken Burns effect". The panning and zooming Mr. Burns used in his civil war documentary is recognized as a great technique for incorporating photographs into video.
I hope you will share your project results -- it should be very worthwhile!