Hugh's Financial Calculators
This site has calculators for every phase of home ownership including rent vs. buy, points or down payment, balloon mortgage calculators and how much home can you afford.
Interest.com
Use this site's calculators and worksheets to find the best interest rates on everything from mortgages to certificates of deposit.
Karl Jeacle's Mortgage Calculator
This comprehensive mortgage calculator allows you to print a full report of different mortgage scenarios. Detailed graphs and charts help you understand the impact of extra payments and different interest rates.