It depends on the products you're looking for. I find that a lot of the good curly products are on US sites. The CDN/US exchange rate is pretty good right so the prices should be pretty close to par. I don't know about shipping though. I don't know if that will be an added expense.
What are good canadian hair shopping sites anyway? All I know is well.ca is similar to drugstore.com
***edit*** I use sulfate free shampoo again and don't use shea butter