I have never used Urbanation, but have heard that it is excellent. I also enjoy reading their opinions in the paper. Seems like a great urban Toronto source of information.
RealNet Canada is one website that I have used in the past, and really enjoyed. They not only do condos, but also subdivisions, land deals and commercial, and are not just in the urban Toronto core, but across Ontario and maybe also Calgary.
They have a decent user interface, and really great deailed information. They are a bit pricey, but I think real estate representatives get a deal.
I also see RealNet mentioned in all the papers as a prime source of information. http://www.realnet.ca/
Thinking about it, I need to see if any of my builder friends can give me their access again!