http://www.canadianisp.ca/cgi-bin/ispsearch.cgi
Here's a link from a different thread showing Calgary's 19 ISPs. Someone in the other thread mentioned they are with TekSavvy, who offers 200GB for the same price ($31.95) as my crummy Telus HighSpeedEXTREME!!!!1! which is blowing goats lately.
If you find a new provider, let us know. I'm ready to switch, even if the new provider uses someone else's infrastructure to get it to me.