Dear Lazyweb, do you know of an automatic "image tank" software?

When doing a larger social event, say, like a dancing seminar or a conference or just about anything where people are eager to take photos, it would be nice to have an easy way of collecting all the photos. Also giving people the option to store the image from their camera somewhere without having to bring along a larger memory card or their own laptop.

It should be fairly easy to setup a computer which just

• waits for an USB device to be plugged in, and download all images from the device
• waits for an empty CD or DVD to put in, to store the most recent images on it (so people can plug in their camera, then put in a CD to get them written to CD
• when idle, just show random recent photos

Does anyone know of an application already doing that? I don't want to go through all the UI that you have in Gnome, it should be automatic.