Admittedly my sampling is small but I have worked for Canadians and have hired Canadians to work for me in the USA. Except for the occasional difference in word pronounciation I never would have known that there were any cultural differences.
Most people I know probably won't be able to tell if you were from north of the border, at least not if you're from the English speaking provinces. And if you a Quebecois (sp?) they'll probably think you're French (in which case I would suggest making sure you tell them you're Canadian).
Having spent some time in Canada, and having lived in Europe, IMHO Canadians and "Americans" have more in common than any other two nationalities.
So, come on down. I'd be happy to have another hockey fan around.
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In a crisis one does not rise to one's level of expectations but rather falls to one's level of training.