Kenny, a great question that I forgot to make clear.  There is already conduit between all the buildings.  I confirmed tonight that it's got sufficient capacity to run an extra CAT5.  I think we only have to fish a ~150ft run between the middle building and the bunker, as there are spare CAT5s in the conduit between the middle building and north building, so that should just be plug-n-play.  The trenching to the bunker was done earlier this year as a response to the awful power outages we suffered this winter.  The north building is now tied into generator control (and possibly power?) of the bunker.