When a high-cost commute reaches the point of no-return, home buyers will start finding houses closer to work. In fact, some already are. ---------- Rising fuel costs are being blamed for everything from soaring utility costs to lower retail sales and higher airline tickets. And now, experts say high gas prices could reshape U.S. cities. "Most analysts believe that crude oil prices in the $50s and $60s will be with us for some time," says Stuart Gabriel, director of the Lusk Center, a think tank at the University of Southern California devoted to studying real estate forces and trends. There's...