[guilty]

If you can sift through government websites to find what you're actually looking for, this link might help:

http://www.cbsa-asfc.gc.ca/import/startintro-e.html

It's the Canadian Border Services Agency, they've got everything about importing/exporting things on there. But the real information is in the Tariffs which might be tough finding what you're actually looking for.

So unless you're getting an unbelievably good deal, or you definitely cant find the parts in Canada it's usually a good idea to shop around the Canadian retailers first. Especially for big dollar items, where the percentage you pay can make a big difference on how much you're saving by buying used or ordering somewhere with a cheaper price.