Yeah, as convenient as that sounded, when I crunched the #'s I found I could save a lot more negotiating a contract with Canada Post and keeping it all in the same currency. I do the exchage from PayPAl US funds between my TD US and CAD accounts at a preferred rate and save again. Plus as an added bonus I earn airmiles on $1000-2000 a month extra by charging it to my Amex!
PayPal/Canada Post need to try and work up a slightly more attractive deal there that's for sure!