Mobile phone in Canada

It's a fairly competitive market, thehamster. Perhaps a bit different to the European market, in that we're a bit newer on the phone card side.

Would you be here long enough to take advantage of a 3+ month contract? The prices definitely improve with time. Bell Canada/Sympatico and Rogers/Cantel are two of the larger providers in central Canada.

Any other Canajuns with cell phones and ideas?

Thanks for your suggestions.
I went through some of their offers, but I think I decided to wait and see what carriers are going to be available in Winnipeg (the place I'm gonna stay for some years) - mainly because I don't know what companies actually do offer their service in that area.
But from what I could see on those websites a prepaid service would be the best thing for me. That's what I'm used to here and I guess I should stick to it some more time.
Do you know if there are some good deals on prepaid services and mobile phone sets? Here in Europe I was able to get myself a prepaid SIM card and a Siemens phone for roughly 50 bucks. Are these things also available in mapleland or should I get a handset via ebay for the better deal?