I used my friend's copy but want my own. Where can I buy one (in Vancouver, BC)?
The official manufacturer, has a page called Where to buy where you can see all the available stores that can be used to purchase the product.
EnGenius "Where to buy" page: http://www.engeniustech.com/dealers/where-to-buy/online-stores.html
You can use Amazon or Ebay to buy this product as well.