Peter, is it possible, that they may not suit your needs, because you need more than what they offer?
I know that sounds silly, but it's possible that you want your site to look different, than a standard CMS/portal. You may consider a news application for news and articles, and then simply creating the rest of your site from scratch. While I know you're looking for a CMS, I have found that CMS software typically all looks the same, and building from scratch will get you the custom look, and functionality you're looking for.
- Drupal
- Geeklog
- PHP-Nuke
- phpWebSite
- Post-Nuke
- Xoops
These are some of the better known ones, and are available from Fantastico, in CPanel.