The housing boom of the past few years has left a challenging climate for prospective home-buyers, especially in urban areas like the Twin Cities. Interest rates are low, but rising. The pressure to join the ranks of homeowners is strong. But housing as an investment is looking less brilliant than it has in recent years. Buyers are facing the end of the hot housing market, and experts say it's essential to keep a cool head. Minnesota Public Radio's Jeff Horwich reports.