Announcing DeskShade Plus 1.0 , the best way to get rid of desktop clutter and the messy feeling of too many icons on your desktop.
You can use the ordinary desktop background or use QuickTime movies as background. (The last with options for size, sounds, looping and transparency).
Then there's DeskLock, which allows you to password protect your Mac. Display a fully styled away message while you're gone (including pictures), and it automatically monitors all attempts to unlock the desktop.
Info and download at:
http://www.macrabbit.com/deskshadeplus/
Have fun!