iMovie and then iDVD to burn to DVDs.
Very easy to use.
Good control over editing and some special effects as well.
Reasonable control over audio as well.
Only issue is you need to have photos in iPhoto if you want to include them in the movie.
You can drag any photo from a folder and drop it in the window of Imovie! I though same as you but I tried to drag and it works! Give it a try! 



