phpFeed is a php-powered RDF/RSS retrieval/display system. the configuration file, like the RDF and RSS files, is contained in XML, making it easy to configure. the html that formats the display of the RDF/RSS files is contained within easy-to-edit include files, and you can even specify your own CSS to style it to your own preferences.
in short, i made phpFeed as an easy alternative to have to script your own RSS/RDF puller/displayer.
you should go and check out the demo and then, after i have WOWED you with my genius, download it.
you will need to have PHP 4.2.1, compiled with DOM XML support built in. see the documentation for more information.