Drupal: Display a taxonomy as a faceted list in a panel

I need a way to display taxonomy terms as a filtered menu/list within a panel. Ideally, I’d use Faceted Search but it doesn’t seem to hook into Panels and take advantage of the context.  I can’t send it a Term ID as an argument and have it automatically filter other vocabularies accordingly.  Here are the modules I’ve tried:

Taxonomy Filter.  This seems like the ticket.  Works with Panels.  Lots of options exposed in each Vocabulary’s settings.  Even supports a tag cloud using the Views Tagadelic and Tagadelic modules.  I installed Tagadelic and they work nicely.

Taxonomy DSS is the right idea, but doesn’t appear to obey any of the panel settings for the Taxonomy DSS block.  The resulting list just spits out the current taxonomy with all other terms nested.

Taxonomy Menu with DHTML Menu.  Does what it sounds like.  Not what I need, but may come in handy later.

Refine by Taxonomy.  Creates blocks, but blocks don’t work intuitively in Panels.  Also tacks additional term ID arguments onto the URL.  Don’t have time to figure this one out.