There is one thing all Canadians should watch with UPS when getting stuff
from the states and that is the famous UPS brokerage fees.  A $500 US order
costs about another $45 US in brokerage fees, plus gst on the value.  The
post office charges a flat $5 CDN for all shipments.  There is at least one
list vendor who will only use UPS.
I regularly ship used items from Canada to the states.  UPS will not insure
used items going in that direction, that may suggest something.......

Gary Lee