I'm not advocating doing what I am about to say, but I don't really understand here.
If you get a US credit card and address, even then you are violating the licensing agreements about the stuff not being available in Canada. Technically doing something illegal... so if you're going to do something illegal, why pay money to do it? Why not just download them elsewhere and put them on the iPod?
If I'm going to do something illegal, I might as well do it for free
Again not advocating doing this, just thought it was interesting.