Does anyone know the best way to trade in commodities, namely precious metals? I'm completely new to this but have heard buying units of gold/silver can be a good safe long term strategy.

I have a separate managed fund with Hargreaves Lansdown but the only gold silver options they do is a fund that invests in companies that handle the stuff.

You can invest in gold or other precious metal from your sipp account. Another good option is to by gold bullion or sovereign. I know some people don't like having physical gold bars. But there are plenty of places where you can store for cheap.

Why not invest stock gold? I have been doing that for ages, It always goes up and down, watch the market for a week, then get it when cheap, the sell when high. I promise, I made a 45% profit in 3 days from gold, go on a stock app that lets you use fake money but real stock timing to test yourself.

I got mine at bullionvault.com it's supposed to be buying real gold, rather than effectively betting on the price. You can have it sent to you when you have enough for an ingot