1. Arduino extension kit with sensors, actuators etc [the one we used in the workshop]
http://www.makershed.com/ProductDetails.asp?ProductCode=MKSP8
2. Arduino microprocessors: retail source in Toronto, College at Spadina:
http://creatroninc.com/onsale.php
3. A source for really cheap (low quality, but ok for light duty…) servo motors: HobbyPartz.com
