Prado Portal is a Portal/CMS based on PRADO, a PHP based framework. The difference between Prado Portal and other systems is that you can edit any page visually, by adding Portlets to the page, no need to go through long menu paths to add contents to your site.
Uses MySQL as database, have a nice and easy installation wizard that makes it possible to have your site up and running in less than 10 minutes. You can change the layout of all pages. Have an advanced role based permission system. It easy to extend by adding new Portlets.