Update network sites when changes are made to template site

Hi there,
Is it possible for the content of pages to be updated in the sites that are copies of a template site. For example I have a page on my template site that contains links to about 50 documents that are stored in the library of the main site. I sometimes want to update these documents to new versions.
I would like to be able to just upload a new version of the file to the main site library, update the link on the template site and then magically the link on all of the cloned sites will automatically update also.

What do you suggest as a good strategy to achieve this?

Thanks - Mark