menus

could someone list the different ways to handle the menu system.
for example, there is the $menubar... is there a way to theme that? perhaps some article I could read about how to use it.
also, what are the other options and perhaps some articles about them.

the rest of zen is pretty straight forward so far.

Theming question here...

I have a $secondary_menu in my page.tpl.php and it's doing what it's supposed to. Right above it I have a Section Title. I want that section title to be replaced with whatever the top-level menu item is. (Say the top-level is About | Products | Contact, and then 2nd level under Products is Shoes | Coats | Umbrellas. If you've clicked on Umbrellas, I want the section title to be Products.)

Hello Usability group!

I'm happy to announce that the MiniMenus module is now available. This module has been in use on CivicSpace sites for some time, and I recently got permission to open source it and begin maintaining the module in my free time for the community.
It's been tweaked since last fall with feedback from CivicSpace users, and I've personally grown to depend on it.