You can create limitless screen savers using Macromedia Shockwave Flash. It is even possible to select multiple Flash files in one time
1. SWF (Shockwave Flash) files formats can be added to Screen Savers.
2. Custom design Settings window
3. Several Background options (solid, gradient, bitmap, original screen...)
4. Display the caption each media.
5. Unlimited Screensaver Distribution for licensed users.
6. Intuitive User-Interface.
7. Preview screensaver and settings box and installation.
8. Customize Screensaver installation screen.
9. Supply license information to the end user along with the installation.
10. All in one package - no need to use external packages to create read me files or installer.
11. Screensaver projects management.
http://www.screensaverbuilder . org