Affiliate custom CMS

I'm a php developer as well as a marketer. I'm starting a project to make a simple way of putting up affiliate websites. A custom content management system that will have a easy way of changing keywords, descriptions, content, images, and other such aspects of a site. I would like some input from you of what you would like to see in a script like this. I will be offering it for free once complete but would like input before I start this project. Some ideas I have already received is that of a web based email list mailer. For those that have hosts that allow mail php function this is very possible and easy to construct. I have also been asked if website scraping could incorporated. Which it can but specific sites require specific regular expressions. Also to be included as of now is a automatic link cloaker where you can insert your hoplinks in the control panel and have them cloaked automatically. Please feel free to give input for any idea as odd as it may sound it may be helpful to others. thanks

Eric.