Import to Canada from USA

Does anybody know if I must pay GST to ship USED audio gear into Canada? I called fedex and they had no clue, which was surprising to me, for some reason I thought that shipping stuff was the company's primary source of income. Now, I can't help but wonder, what are all those planes for. My second option was to give my "speaker" money to a lawyer to descipher the Canada Customs website...NO THANKS!!! So now I am here hoping one of you can shed some light on this subject. Thanks for any input.