Wherever to go and what to do in Toronto you can find in any tour guide book. But we strongly advise you to forget about maps, guides and other tourist stuff. You just get to the city and start exploring it all by yourself. It is interesting as you won't stick to the clichés and the beaten track. It is so great to move to the corner and the next second see the medieval cathedral!
Actually, you would hardly see such signs in Toronto but there are also some places that are really worth visiting. The problem that might occur is where to spend a night there. For sure, you may book a room in a hotel or your may just find several offers in the Internet and call the owners if you want to rent a room there.
But there is even a better choice: you may visit a real estate agency and ask them to find a condo for you in any district in Toronto. For sure you will be offered condos in North York or in some other areas that might turn out to be even cheaper for rent, like, for instance, in Etobike region.