1. The property tax, arround $2000 a year
2. Facilities (hydro, elec, gas, etc), arround $200 a month
3. Condo fee (if it's a townhouse), arround $200 a month
However, if you could lease the basement out, you should be able to get a leasing income of $300 to $700 depends on the situation of your house.
You could calculate the others by yourself.
BTW, you can find many useful information about home buying at the attached address.