Before you ban a Canadian did you know----
I keep seeing listing that state the will not ship to Canada because shipping is to high. Did you know that you can send up to four pounds via fist class international . A small flat rate box up to four pounds is only $12.95. Also it is good to have a friend in Canada they have great coins. Also it is ok to send coins to Canada if it is to a collector from http://pe.usps.com/text/Imm/ce_003.htm#ep2041503
Restrictions
Coins; banknotes; currency notes; securities payable to bearer; traveler’s checks; gold, silver, platinum, manufactured or not; jewelry; and other valuable articles may be sent only in registered items.
Exceptions:
Coins sent to or from collectors or dealers may be mailed in ordinary (uninsured) parcels.
Also looks like Gold is not OK--
Gold bullion, gold dust, and nonmanufactured precious metals.
So you might think about letting Canadian bid. Just my to cents.
Joe