I have deployed sites with mambo, joomla, phpwebsite and none of them were as complicated as a drupal powered site. There may be power there but the learning curve for it takes far too long.

I have sworn off of Joomla since there GPL Licensing  campaign (started version 1.1.3 ) The developers in that group branched from Mambo then a year later tell all the developers that there components (plug-ins) cannot be sold, they must be open-source.

Here is another package to stay away from if your are a developer "Magento Commerce". This ecommerce CMS uses the EAV database schema and if you have ever thought data-mining was difficult you aint seen nothing yet !, And the ability to "theme" a site has so much code in the template that when a version change occurs you have to redo your "theme" !

One CMS I am tempted to look into is silverstripe (http://silverstripe.com/) has anyone tried or worked in this before ?

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