The most important to consider when you are buying a home is whether or not will cater to the needs that you have. For example, a couple with three children would be advised to buy a home large enough to cater for the living needs of their children, amongst other needs.
You will have to get pre approved for a home loan, go to your local bank and check it out, but make sure to shop around rates are starting to drop again. Also you may need a large down payment. The better the credit you have the better chance you have of getting the house you want and a loan.