I was also shopping around trying to find viable shipping options for a Bike Pro tandem case from Boise (83701) to Coeur D'Alene (83814) and hit $147 for FedEx residential delivery service. Amtrak does not have any shipping service in Idaho. Greyhound (shipgreyhound.com) quoted the
best price at $75.
Later I did find a better pricing for
FedEx service quoted by:
http://www.shipbikes.com/HowMuch.aspx at
$101, a $46 savings over the standard FedEx quote. Just food for thought regarding future shipments.