I heard of a place in Vaughn, think it's called Wheelsco.com. Supposedly great prices as well. I'll be looking at new tires next year. If I can't get a decent price in the GTA, off to the states I go, even with the exchange it seems like a better price.
Just ordered a set of Forgelines and R888R's at Braidan Motorsport on Markham Rd. south of Major Mack. See Brad or Nadia. Michelin dealers and used to mounting all sorts of tires on expensive rims. Doing the summer tires for my Tahoe too. Great to deal with!