You bring up an excellent question of why don’t many US retailers take advantage of the ever growing the Canadian market. As strange as it sounds, many of the large ecommerce sites (bestbuy, motorola, ssi, etc) all use the same custom software package. That package for one reason or another comes with US shipping as a standard. I think the developer never thought of handling shipping to other countries. You think somethign like that will be easy to fix but it escapes many ecomerce sites.