Burritas Dancer is a freeware program featuring free dancers on your desktop. They say hi in the morning, remind you of your appointments and dance for you whenever you want them to. Have fun!
The software abylon LOGON WALLPAPER-CHANGER customize the Windows 7 (without starter) log-in background. All images will be optimized and converted into the required format. Each windows log-in, a different background image is displayed.
Actual Transparent Window offers new ways of working with multiple windows: it lets you easily set and vary transparency level of any window, either manually via title button or automatically depending on a window state (active/inactive/moved/etc.).
Wallpaper Slideshow Pro is a great utility for displaying your favorite photos as desktop wallpaper,with lots of different options it offers you complete control on your wallpapers collection. It supports exif/iptc/xmp and multiple monitors.