GLOBAL MARKETS-Stocks rally on Bernanke, economic data; euro up

* Euro boosted by solid Italy debt sale after election * S&P 500 up 1 pct; MSCI world equity index up 0.8 pct * European and Italian stocks bounce back * U.S. durable goods minus transportation up By Caroline Valetkevitch NEW YORK, Feb 27 (Reuters) - U.S. stocks rallied for a second day on Wednesday as Federal Reserve Chairman Ben Bernanke reaffirmed his strong support for the Fed's stimulus efforts, while the euro edged up after solid demand at an auction of Italian govern