Money: The currency used in China is the Renminbi/RMB Yuan (CNY). The Yuan is divided into 10 chiao/jiao or 100 fen. RMB is not traded outside China and we still cannot exchange £ or $ into RMB easily outside of China.
You can exchange some cash in the airport you arrive. Travellers cheques, preferably in US Dollars, and foreign cash can be exchanged in cities at the Bank of China...