Don't get too excited people - Harper and his Conservatives have a bare minority government in Canada, and won't even have that come next election. So enjoy this unprecedented and not soon to be repeated aberration in Canada's historical foreign policy position.
This will all make up not much more than a footnote, in any history of Canada's relations with the U.S.,prepared in say, 10 years ....
So as I said, enjoy it while it lasts - it won't be for very long. :)