This year 1.2 million consumers will buy a new home, and they need real help in navigating the new-home minefield. The latest edition of Your New House includes charts, tables, black-and-white illustrations throughout, as well as updated prices and new trends in home buying. Also added is information on the dot-com shakeout, including what it means for online mortgages and home listings; more Web addresses for all major product manufacturers; and the best websites for deals on products like carpet and lighting.