Yesterday Microsoft revealed pricing and availability for the Microsoft Surface RT tablet. http://www.microsoft.com/surface/en-us
Since the announcement, their cheapest Surface RT model without the touch case has sold out and there is now a minimum 3 week back order.
Canadian Pricing and Availability
It looks like your order will ship by October 26 and arrive by October 30. If you want to try to get it sooner, then try visiting a Microsoft "Popup Holiday” Store. I know I will to checkout the device first hand and probably buy one.
Further Reading: Everything you need to know
Checkout this amazing blog post on Neowin for more details on everything you need to know about Microsoft Surface RT.