I know it has been a few months since you asked this, but here is my experience using Spectrocoin's MyChoice prepaid visa card. Overall I have had no problems using it, but expect it to cost you 5-6% of your coin in Canada. I'm currently looking for alternative options if anyone has suggestions for a higher $/BTC card than Spetrocoin, and particularly if anyone has suggestions for using a card in Canadian Dollar (any lower foreign currency charges than Visa's 3%?)