Platinum & Palladium:
The main drivers for future demand are going to be Electronically Traded Funds (ETF's) & the economic recovery of the motor industry. Catalytic convertors are now fitted to virtually every motor vehicle & the main demand will clearly come from the emerging markets of Asia, such as India & China.
As supply is currently quite high, now is a good time to invest in the white metals & economic growth will cause a surge in its price. A long term investment.