Turface is made for, and used by, those managing athletic fields. Most infields of baseball diamonds use it in large quantities, even in Canada. Al

You can try Plant Products Co. Ltd., 314 Orenda Road, Brampton ON L6T 1G1
http://www.plantprod.com/horticulture-en/ProductDetails.aspx?ProductID=1496&CatID=0
I have purchased from them before but that was 3 years ago.

Another place is Gro Bark that was mentioned in this post:
http://forums.gardenweb.com/forums/load/fig/msg1020281118447.html
I have not bought Turface from them but have bought pine bark fines.

Hope that helps.