As with most things I know, this was pointed out to me by another smart person, Bilal Jeewa of ASI Consulting - Europe.

There is a standard feature of Content Manager 5.1 that accomodates display of dynamic content in template sections, by Navigation Section.

What does that mean? Well the issue I was trying to resolve was to have a different image appear in the body header based on the navigation section the page was in.

So..

1. In the top level of Navigation was a hidden nav item, Content Area 4, which held the default image for a section of the template.
2. To get a different one for the section, say Meetings, you just need to add a secondary nav item to the Meetings section, and call it Content Area 4. Place content in it, I called it Content Area 4, and place a different image in the HTML content.
3. This essentially works because the process that pulls the content for the templates is hierarchical. It starts at the lowest level of hierarchy, say a secondary nav item in a section, if it finds a Content Area 4, it uses that content (image), if there is no Content Area 4 for the section, it uses the Content Area 4 in the top level of navigation.

This has other applications too. If your template has a section to show an advertising image, you could sell different advertisements for different sections.

This is one of those more obscure features that I just wanted to help publicize.