Vulcan tire is a good place to get winter tires, and they offer studding. they ship to Canada. Personally I've never had a problem running my Hankook ATM's all winter and I live in any icy/snowy part of coastal Northeastern Massachusetts.
I hadn't heard that the Motomaster Total Terrain WT was disco-ed. I have run them on two different trucks over the last 7 winters and have been suitably impressed. They were very inexpensive, handled wet, heavy-snow, southern BC winters with aplomb. Worked very well on both a 4wd crewcab 01 f250 and a 2wd f150. I don't know if they are a top tire, but I would have no qualms about buying them again. my $0.02