I couple of days ago, I installed a little program that automatically downloads cool desktop wallpapers and activates them on your computer.  I’m really digging it.  The designs are all funky and cool.  Occasionally, one pops up that I don’t dig but there’s a little icon in my task tray and I can just click “next wallpaper” to move on to something new.  It’s great.  It’s free and it’s available for both mac and pc.  You can check it out at here.  Enjoy.