I'm a PHP developer currently working on a project called odCMS (Open Designs Content Management System). The main goal of this project is to promote the use of open source web designs. There are many open source designs available at sites such as oswd.org, openwebdesign.org, opendesigns.org, getfreewebdesigns.com, freewebsitetemplates.com, and many others. However, I don’t think many of them are readily being used; most often because the difficulty of adapting to whatever systems are being used. To overcome this problem, the main feature of odCMS will be the ease of converting designs into themes where you can use for the page layout. If you are interested in this development I would be more than happy to share it with you.