Market Forecasting

I am looking for some advice on the best sources for forecasting market trends for Steel, Brass, Zinc, Aluminium, Paper, Cardboard, PVC, PP, PE, and ABS. I currently use the LME for the metals, which is excellent for analysis of past trends, but doesn't offer as much insight into future market conditions. If anyone can offer any advice on market tools they currently use I would be very interested to hear from you. Many Thanks in advance for your assistance. Kind Regards, Dan Hutchins