gPhotoShow Free

gPhotoShow is a screensaver, allows you to display unlimited images, supports multiple monitors and can automatically change the wallpaper on your desktop.

Other features:

• includes several transition effects
• supports BMP, JPG, GIF, PNG formats
• automatic resizing
• option to play your own music, as a background screensaver. Supported formats: mid, wav, mp3.
• Password protection.

There is also a Pro version for more demanding users.