I loved Kimbelina's reply, it made me laugh. However she does have a point. If you are a first-time buyer of a home there is a lot more to think about than, "can we afford the mortgage?"
I read somewhere you should estimate an additional 45% in cost, and while I'm not sure that number is correct, there are a lot of costs to deal with. I've tried to list some items you might want to think about.
Homeowner's insurance, a lawn mower, weed cutter, rake or leaf blower, edger, maintenance and upkeep on your wood fence/deck/exterior of your home, window/roof/ and furnace repair/replacement. If you choose to keep up your own yard, you will need several different kinds of cutters for flowers, bushes and tree limbs; lawn maintence products, or you can choose to hire someone. If you choose to do this yourself you may possibly require a shed or somewhere to put all your items.
Moving inside you will need appliances if you don't have your own. You may wish to paint or need to fix kitchen or bathroom drawers, toilets, sinks, showers and/or bathubs. Hopefully your floors and ceilings are in good condition, but what about the electrical and plumbing?
My intent with this is not to discourage but to be sure you have a realistic feel for what it may cost you. Before purchasing a home use a realtor with a good rep that has been in the business a long time. They can recommend someone who is in the business of inspecting the inside and outside of the home you are interested in. It will save you thousands in the long run.
Oh, and Kimberlina my preference is Tequila!