You've got the idea. Each time the page is served, the code grabs another banner from the rotation served by our server. The images can be anywhere, within reason. Its best if you don't have bandwidth limits (a lot of ISP's provide hosting without limits), but if you do, I'm sure we could sort something out.

The more people who are prepared to have the banners on their site, and the more people providing banners, the better.

So... anyone else interested in working together on something like this?