You have to study things that like meticulously, or you need the gut feel. That page is designed to make your head spin and confuse you. Information overload. Investing in a raw, non-precious material (like chrome) is only profitable in large volumes with lots of money.
Want some money in the short term? Buy dollars. With R 240 000 you can get about $ 30 000 at R 8 a dollar. Buy it through the lowest percentage commision agents you can find. Keep it in the Caymans. Wait for next year 2010. When the world gets another kick in the balls economically, everyone will rally to the security of the American dollar. Price will easily hit R10-11 for a dollar. R 300 000 - 330 000 in a year. Take out commision and you've got 20+% return in a year, on the conservative side.
If, one the other hand, the dollar becomes R 12-15, due to above mentioned factors and South Africa realising the 2010 investment was completely over capitalised, you're looking at R 300 000 - R 450 000. That means R 160 000 returns. Of course, that is being a bit liberal now.