What are the options for parking a car in Toronto?

If anyone out there is familiar with Toronto, Canada…

I’m going to be driving to Toronto in a few weeks, and need a place to park my car. (I’m staying at one of the youth hostels, and I don’t believe they have any parking available).

Does anyone have a clue where I could find a parking deck to store the car for a few days, and also how much I could expect to spend for this “privilege”?

Thanks.