In this recent post to his blog Joe Topjian takes a look at something that has been known to confuse Zend Framework users when trying to set up access control for their application - using the Zend_Acl component.
It seems everyone, myself included, has a bit of a hard time first grasping Zend_Acl. For the time being, I've settled on a simple solution. It's party based on the solution given in the Zend Framework in Action book. I hope you get some use out of it.
His example uses the Zend_Config component to configure his roles and a more centralized approach to validating access for the users - more rules in the INI config file and a custom MyACL class/AclHelper tat are called from the bootstrap file to evaluate where the user can and cant go for each request.