I don't/didn't live in res, so I couldn't help you, but here are rough estimates
Tuition per year: $10,000
Rent (assuming year long lease): $6,000 per year
Food/Bills: $2,000 per year
Equipment: $6,000 total
Books: $0-$3,000 total
Boards (Cdn. only): $3,500 total
Externship stuff: $? (if residence is paid, not paid, etc).
Flights home: $500 per year
Furniture etc: $? (depends)
Other misc expenses: $500 per year
Interest on student line of credit: $500 annually
The roughest estimate is about $20k per year with everything. Of course, I know some people who were $50k in debt after first year, other who are now $50k in debt through half of second year, and still more who actually have money in the bank right now (good earners, scholarships, student loans or parents paid their way). You'll get an entire cross section. It also depends what you want to do while you're here, trips to Toronto, how many books you want to buy, etc. Oh and if you have a car, add in another $2k probably.
It's all up to your lifestyle and how you want to live, but like I say, plan on being near $100k if you spend somewhat frivolously by the time you're done.
Hope that helps!
