Wall St opens lower on energy, materials

U.S. stocks opened lower on Friday as expectations of a China interest rate hike hit commodity prices and dragged energy and materials stocks lower. * The Dow Jones industrial average dropped 62.59

Travel Picks: Top 10 destinations by boat

For those who want to try a more adventurous holiday in 2011, but do not want to leave their home comforts behind, a cruise could provide the solution. Cruise Critic (www.cruisecritic.co.uk) —