You may find the following resources helpful in your search for a mortgage quote online.
Bankrate.com: Mortgage loan interest rates - offers a collection of easy-to-use financial calculators, including Mortgage payment calculator, Rent or buy? calculator, Found your dream home? calculator, and Fixed vs. adjustable rate calculator.
HowStuffWork - "How Mortgages Work" - an online guide to everything you could possible want to know about mortgages. Includes information on specific types of mortgages, as well as practical advice about what type of mortgage may make sense for your personal situation.
BBC News | In depth | mortgages - offers up-to-date news on mortgages and housing. Includes both helpful tips as well as information on real estate investing and finance.