Not sure what area of the north city your in, but if Chorus Cable is available in the area then BB via Chorus is probably also available. Obviously, not the greatest setup if your not interested/already receiving cable via Chorus, but another option which may be available to you.
One of the pro's of the setup is the download/upload caps. I was told by one of the sales teams that while caps are listed on the advertising, they have no way of currently tracking it. He assured me that no additional costs/loss of service would ever occur from high usage.
I ended up going with it due to various reasons and just had to test his comments. Sure enough, never had a problem (with some serious usage from two laptops - cost a fortune on DVDs burning everything to disk to free up hard drive space every couple of days). The speeds were good, not great. Service was very good, think I only ever lost the connection once (that I was aware of) and that was while I also lost cable for two hours (and all other users, so not related to the BB usage, I hope!) so definatly the exception rather than the rule.
I have seen poor feedback on Chorus BB from others, as with most services, but my own experience was pretty good.