I don't know how many Canadians visit our blogs, but right now Amazon has a great deal when you pre-order certain games. 20% for 2 games, and 30% for 3 or more:

http://www.amazon.ca/b/ref=amb_link_433856302_2?ie=UTF8&node=10533376011&pf_rd_m=A3DWYIK6Y9EEQB&pf_rd_s=merchandised-search-top-1&pf_rd_r=00BDY3RXJBGNGKB83525&pf_rd_t=101&pf_rd_p=2105760582&pf_rd_i=9291974011

If you're into Best Buy, they have 20% when you pre-order 2 or more games if you're part of the Gamers Club Rewrad Zone:

http://www.bestbuy.ca/en-CA/E3.aspx?icmp=E3-homepage-hero-en