If you work in a PC environment, then using Photostory3 from Microsoft is one way to easily create digital stories. Photostory3 is a free download from Microsoft, and it works by walking the user through a series of steps (from uploading image to recording voice to adding music).

This video tutorial will walk you through how to use Photostory3.

And here are a few ideas for using Photostory3 in the classroom.