Guess I should also point out that the German sites doesn't have to be translated any more as JuryDuty at ->
http://www.masellis.com/wait/index.htm
Has a couple of apps that just need to be copied over to the device and ran on the PDA, you can then download as many images as you want (or design your own!) and select which one you want to display (followed by a soft reset) If you don't like it just roll it back. No converting, hacking, slashing or other stuff.
Very nice. 8)