I defenetly recomend to you to get yourselves pre-approved first by a Mortgage Lender or Bank, this way you know exactly how much home you can afford, If you are more that 30 days removed from actually purchasing your home there is nothing wrong with "tire kicking" looking at models et., I also recomend after you get pre-qualified and are ready to enlist the help of a buyers broker to help you look and guide you through the hunt and the contract process.
You should defenetly feel comfortable with both your Lender and your Buyers Brokers, you should feel they are trustworthy and are in touch with your needs to be part of your Team.
I would interview a few pro's until you find the right person's to work with.
Asap Mortgage & Investments Inc.
Mortgage Banker/Correspondent Lender
Approved FHA Lender
Apply on Line @ http://www.asapmortgage.org or http://www. asapmortgage.com.web-loans.com/