Robert Miller with the latest City and business news on a successful G7 intervention in the foreign exchange markets to push Japan’s yen lower as shares react positively; Oil spikes again over threat of UN-backed air strikes against Colonel Gaddafi’s forces in Libya and investors buy into gold; fund manager Jupiter unveils a big jump in annual pre-tax profit to £42m and a look ahead to next week's Bugdet and companies in the news with updates from J Sainsbury, Imperial Tobacco, Ted Baker and Next.