Intersecting Category Archives

I have a site with a few categories. Two of those are Audio & Video. I would like to add in links to the bottom of my archive that would take a user to a page that contains all posts that are within the currently selected category (Lead Generation for example) _as well as_ Video or Audio. In other words, an intersection of the two categories.

Is it possible to do this with WordPress? I found a plugin (http://www.tester.ca/?name=intersect-plugin), but it doesn’t seem to work with WordPress 2.0. Is there another way of accomplishing this?

Thanks for the help.