If you watch copper you can see it is way of the highs of over $4.00 per lb. Silver is at 18 and it has been trying to test the boundary right now. It saw its high in 2008.
Silver has been testing 18 for a while. If it does not pass 18 with power soon, it has a good chance of taking a big drop with out very many supports.
Copper, Gold, and Silver I believe are bad bets right now. Now they could go up but there is a lot of risk in the market right now. The only metal I would have any interest in is nickle. I think it is going to rise. Nickle is used to produce stainless steel and other steels like monel. Even so I would not bite on it.
Stay away from these metals for at least 6 months and then reavuate at that time. The danger and risk is too high right now.