I'll have to think about this to see if I can come up with a way to do what you want to do. The menus could be partially done based on DNN Roles. If you check the documentation you will see how to setup roles that will automatically populate with AD users. If your AD users all belong to one common group or two you can set the menu items up so that they are visible only to them.

The problem would be for users that aren't AD. AD users are automatically added to the Registered Users role so you can't setup a menu that's not visible to AD users but only to DNN users without moving your regular users into their own DNN role.