I hope someone can help me. I have set up my site www.rplacewestern.com, and the store is at rplacewestern.com/store

I configured it so that the shipping cost is from tables, and in fact this works when products are shipped from the USA. The problem is that I have specific inventory located in Canada that will ship mostly within Canada. I need to be able to have different calculations for the products that can ship from Canada.

Anyone have any advice.
Thanks,
Dennis