I will be honest with you. Depending on where you live in toronto. Will depend on how much you spend. 450 dollars a month or below will be nearly impossible...
Maybe you could pay that amount for the areas that are filled with gangs and drug addicts but you said you do not want that, right?
You need to look at the renters guide for toronto which will have all the different areas. There are bad areas and good areas where ever you go but take this to heart..
You will need a lot more then 450 dollars a month to live in toronto.