SharePoint 2007: Permissions, permissions, permissions.

Update: Joel Olsen has a great post about permissions:http://blogs.msdn.com/joelo/archive/2007/06/29/sharepoint-groups-permissions-site-security-and-depreciated-site-groups.aspxSharePoint 2007 permissions functionality has increased so much (granularity / SharePoint groups / permission inheritance), that it is quite easy to get confused when trying to setup your permissions. As usual, Ton