If you are changing the fully qualified domain name of your WordPress website and are looking for a quick and easy tool to update your MySQL database file, you need to check out this cool tool located at:
This was done by a guy I know from the Ukraine, Thomas Howe, he is an awesome PHP developer. If you need a good developer to hire for contract, P/T or F/T work, you can find him under his screen name (thomashowe) on oDesk.com