Here is a Link to several mortgage calculators that can help you in your decision making process with regards to determining how much you can afford or finding a payment that suites your current financial situation.
This is the link to the Houston Association of Realtors. Here you will have access to homes listed for sale in the Greater Houston and Southeast Texas area.
Zillow is another excellent real estate resource site for finding homes and general real estate research.
This is the post office site for changing your address and forwarding your mail.