Tired of paying rent and ready to become a homeowner? Good news! According to our recent Rent vs Buy report, mortgage payments remain a cheaper option than renting, thanks to low interest rates and fast-rising rents. And, even better news, you've taken a step in the right direction when it comes to saving money.

As part of the quarterly report, Trulia Chief Economist Jed Kolko crunched the numbers, finding that buying can be nearly 40% cheaper than renting. But before you start picking out curtains and furniture for that new home, there are some financing decisions that need to be made. Determining what type of mortgage is best for you and your family may seem intimidating, but there is one out there that's right for you.

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We've outlined some common scenarios that buyers encounter, and offer a few helpful suggestions to help demystify the different types of mortgages.

I want a low monthly payment. What type of mortgage should I look for?
The standard 20% down, 30-year fixed rate loan will help keep your payment low. For example, if you plunk down 20% -- or $50,000 -- on a $250,000 property, your monthly payment would be $990. Other mortgage options, while possibly helping you build equity faster, could add more than $450 to your monthly payment on that home.

I don't have enough money for a 20% down payment. Am I stuck renting forever?
Let's face it -- not all of us have a 20% down payment socked away in the bank. But there are mortgage options that require less cash upfront and can help you become a homeowner.

A 10% down payment loan with private mortgage insurance or a Federal Housing Administration (FHA) loan require less money from the buyer upfront. But it does mean you'll have a higher loan balance and will be forking over more money each month. It also means you'll have less equity in the home when you're ready to sell because you've also been paying mortgage insurance premiums.

However, if you can handle the higher monthly payment, but just don't have the money saved for a large down payment, these options could be right for you.

I've got two toddlers and want to pay off my mortgage before they head to college. How can I do that?
A 15-year fixed-rate loan could help you reach that goal. With this type of mortgage you're paying off your loan principal faster and gaining equity in your home more quickly. On the flip side, you'll have a much higher monthly payment.

It's a great way to gain equity. That is, if your budget can handle it. The trade-off is you'll have less cash on hand for other expenses as they come up. (And with small children, unexpected expenditures are almost a guarantee.)

I'm downsizing to a smaller, less expensive home. Do I still need a mortgage?
Good for you! One of the smartest things you can do is commit to a home that meets (and doesn't exceed) your needs. You can avoid monthly payments and interest altogether by paying for your home outright. Bonus: you're building equity as your home's value increases over time.

I'm not sure how long I'll live in my current city. Does it still make sense to buy?
How long you stay in a home is an important consideration when deciding to purchase a home and take out a mortgage. As we've outlined before, it might be five years before you recoup the initial costs of purchasing a home.

If you're certain you won't be staying put much longer than five years, options that get you the most equity in your home -- such as a 15-year or 30-year mortgage -- are good ways to go.

What else should I be thinking about when considering buying a home and taking out a mortgage?
Most real estate professionals recommend shopping around, obtaining information from several lenders to ensure you're getting the best price. You can also work with a mortgage broker to find a lender. Securing a loan can take anywhere from a few weeks to a few months, so it pays to do your homework.

Curious where you fit in the mix? Check out our interactive Rent vs. Buy map and find out whether it makes sense to rent or buy a home where you live.

This article originally appeared on Trulia.com.

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