Ideally, I’d like to find a way to send out both Analog and Digital output from the Mac Mini simultaneously, but from the limited research I’ve done, that doesn’t appear to be an option.  The best I’ve found is an application called AirFoil which allows you send audio from the Mac Mini to another computer or an Apple Airport Express which could in turn output the analog signal.  It might also be possible to find a receiver which passes digital audio to a second zone, but if they do exist, it is most likely out of my price range at this point.  The AirFoil software would also require a hardware purchase of the Airport device, but it seems a little silly to plug an Airport in right next to the Mac Mini for the single purpose of passing analog audio to the receiver.

If anyone has any suggestions before I drop any more cash at the Apple Store, please let me know by posting in the comments.