U.S. News & World Report - Although economists have grown increasingly concerned that the real estate market may slip into a "double-dip" recession, today's consumers are being handed a tempting incentive to buy property or refinance their home loans: ultra-low mortgage rates. Rates on 30-year fixed mortgages fell to 4.57 percent for the week ending July 15. That's down a half percentage point from three months earlier and the lowest level in the 39 years that Freddie Mac has been monitoring rates. ...