I just recently became aware of another option available for Canadian consumers regarding subwoofers. You won't get hit with import charges either which is a problem with the majority of subwoofer manufacturers and living in Canada.
http://www.funkywaves.net/There is lots of information regarding their products on home theater shack to research. FWIW one of their subwoofers is going to be featured in audioholics latest subwoofer testing which will include measurements and listening evaluations which you should keep an eye out for along with an offering from SVS and ED I think.
