I am looking at implementing a navigation structure that would make a lot of sense, given our users and the content, but I don't know how to implement it within DNN. Here is what I want to do:

I have 1 top level menu that has 5 root level items ,plus admin and host menu. Those five items link to pages that have a further navigation structure. For instance, one of the root menu items is named "Tools". When you get the tools page, I want to see all the child links, two levels down, in the page's content pane.

<Tools page Below>
Communication Tools (1 level down from tools)
----------------------
page a  page b (2 levels down)
page c  page d
page f  page g

Operation Tools (1 level down from tools)
----------------------
Page x  page y (2 levels down)
page z
</Tools Page>

Is there a module that can handle this? It has to be able to show the pages based on roles, too. Thanks for any guidance!