I want to create a DNN site in which each of our departments has a different sidebar.  The logical way to do this, I think, would be to create a separate page template for each.  The problem is that if we need to modify the sidebars in the future, this approach would require editing each page that contains the modified sidebar.  I've attempted to create page templates using "referenced" modules, hoping this would allow editing only the "referenced" module when sidebar content needs to be changed, but this approach results in a content-less sidebar module being created on new pages. 

Is there a way to accomplish this goal?  One option I've considered is making each department a separate portal, and including the sidebar in its skin, but this seems like a clunky approach.  Thanks for any help.