Connecting threads may be another option for you. I would love to place an order with CT and know they ship to Canada. They also charge the local taxes and say they ship to the border and then Canada Post takes it from there. But how much are the brokerage fees? That's where we may get stung! When I ordered a book from USA, I paid the price of the book plus to ups for brokerage etc. making the item extremely expensive.
You may wish to look at 'Sew Sisters" in Ontario. Their shipping charges are very low and fabrics are quilters quality. Also "Hamels" here in BC. Hamels have a sale of 20% off at least once each month and free shipping over $200.00.
If a Canadian on this form who has ordered from connecting threads can let me know how they made out, I'd very much appreciate it.