I see a lot of buyers make a basic mistake: When deciding if a particular house fits their budget, they look only at listed price and their probable mortgage payments.
But to make an honest comparison of the houses on your list, you must consider all the costs you'll be facing. In addition to mortgage payments, there are maintenance costs, property taxes and homeowners association fees, utilities and insurance.
Your total outlay should be no more than a third of your gross income (ideally, less). Use the calculator to the right to see if you meet this benchmark.