Arduino Interest in Toronto or Waterloo, Ontario

Also in Waterloo, but VERY new to microcontrollers. (Just got my Arduino today... looking forward to some learnign tonight). After taking a few PLC and computer programming courses, I decided I'd like to do some more tinkering on my own. As long as people don't mind my near ignorance of electronics , I'd be game for a meet-up.

Where's a good local spot to pick up parts (i.e. sensors, servos, etc.)?

Thanks!