Ocean aquatics has the EcoPico Desktop Aquarium. It's similar to the one you are looking for. Check it out, I think it sells for $130.65 delivered anywhere in Canada.
Here is a video of the little tank.
http://www.youtube.com/watch?v=RJdl9PUiu3o
http://www.ocreef.com/product_print.php?item_id=103059
Or you can build your own similar to this one.
http://reefbuilders.com/2010/07/31/u...f-john-ciotti/