Maybe if quantity > quality, Google will do a good job. Honestly, I've used Adwords for $X,XXX/pm quite a bit in the past and aside from a few arbitrage campaigns (back when Google allowed this), I really haven't found it to be worth the money (don't get me wrong, it's not bad but there usually are better alternatives). I'm not sure what your business is about, but I would recommend shopping around -- maybe some local Toronto websites or even newspapers. From my experience, you will do much better with an industry targeted website (in your case, obviously something also targeting the local Toronto area) than you will with Adwords, eg. advertising on Domaining.com or Namepros versus Adwords -- there really is no comparison in terms of the quality of visitors ("domainers") that are being sent to your site.