Mn, I found something which maybe of use. It is not 100% free but if you are just backtesting and want some data there is a solution.
Download US, Canadian EOD Futures Data, Continuous Contracts - CBOT, CME, COMEX, NYBOT
Download and request trial (14 days) (login: demo; pwd: demo)
This will give you access to 5 exchanges with all the futures you can imagine. I just did a bactch download and will use the data for a little testing. The price is reasonable I think £7 per month. Have a read.
This is a sample in metastock of Gold Continuous (2 years) and a full coverage of rolling contracts.
Give me a shout if you have probs, if the datafeed is acceptable we can maybe chip in and share a login :cheesy: