http://www.bestbuy.ca/marketing/game...ngid=EN&page=2
I searched for this as well, found it at bestbuy.ca, release date being March 15.
Have not seen anything at Amazon.ca either. Ordered SH3 from Amazon.ca, has it in a couple of days.
I have never ordered from BB as of yet, so I am unsure of their delivery speed, etc.