I would suggest you take a look at Start Communications for Cable and DSL...
DSLR Forum... »Start Communications
Start MAY announce some new cable plans "real soon now".
Electronic Box offers DSL in Ontario...
»www.electronicbox.net/en/ontario ··· net.html
Or choose Ottawa at this site, select your desired service type, and Search for more providers...
»www.canadianisp.ca/cgi-bin/ispse ··· rch&p=ON
Go to an ISP's own site for details on their plans. CanISP is just a quick summary site, and some details may not be current.
Compare speeds, usage caps, start-up costs, monthly costs, other features (free off-peak usage?), Plan-change fees, etc.
And you may want to check out the ISP's privacy policies. Some are 'under review' right now, based upon recent copyright developments.