CA: http://ncix.com/search/?categoryid=0&q=gtx+670
US: http://us.ncix.com/search/?categoryid=0&q=gtx+670
3 Way SLI is not something that often comes up as a "value proposition", but in this case I'm using 3 NVIDIA GeForce GTX 670s to compare 3-way SLI against a high end dual GPU single card solution the GTX 690!