Banner Management Script/Software/CMS

We need a banner management script/CMS built or installed for a number of client websites. It should work like this:: - Banner management CMS/script operates/works on our website/server - we provide a code to client, which they put on their website and thus displays the banner(s). - Client websites will have multiple banner positions that will need to rotate and link to the ads, GIF/FLASH/PNG/JPG etc - It should be EASY to manage from our end, and include multiple clients/website - tracking, etc. Please PMB portfolio with a message telling us how you plan to tackle this project, and a link to any demos/software that can do this.