China and Buffett fuel Wall St. rally, dollar steady

By Noel Randewich SAN FRANCISCO (Reuters) - Wall Street rallied on Monday after a major M&A deal and on weak data out of China that boosted hopes for fresh stimulus from Beijing, while expectations of a U.S. interest rate hike kept the dollar near a four-month high. All three major U.S. stock indices at one point were over 1 percent higher after a $37.2 billion deal by Warren Buffett's Berkshire Hathaway to buy Precision Castparts showed the M&A boom was alive and well. Wall Street