PhotoOp
PhotoOp lets you build a screen saver from JPG, Animated GIF and BMP files. A collage of images and animations moves across the screen in different directions at varying speeds.
WWSaver32
WWSaver32 allows you to create a custom screen saver using a variety of picture formats.
Make Your Own Screen Saver
Design and create your own personal screen saver with this handy program using your favorite BMP files. This utility comes with various transitions as well as password protection to keep prying eyes in check.
Full Motion v2.0
Full Motion version 2.0 is a next generation screen saver creation utility that lets you create fantastic screen savers from various AVI and MOV files.