Put 20% down on a median-priced ($154,400) existing home, and your payment will come to $616 a month, only 12.1% of the median U.S. family income.
Want to trade up? You may think the buyer of your current home is getting a deal, but you might get an even better one on your next place.
Prices for bottom-tier properties have improved since 2011, reports Zillow, while top-tier prices keep falling.
Want to invest? To get the best rate (a quarter to a half point higher than for your primary residence), you'll have to put at least 25% down, according to federal guidelines.
http://money.cnn.com/2012/04/23/real_estate/mortgage-payment.moneymag/index.htm