brownsfat019 when it comes to savings etc the income generated is negligible. If your earning 6% on your savings your not making very much so your going to need a lot of capital to generate a meaningfull income. CD's are wholesale instruments that require wholesale investments as well and they dont generate income per se cause they're just sold at a discount to receive face value upon maturity.
When it comes to mutual funds this is a great way of generating passive income. We call them managed funds here in Aus btw. Most funds have income distributions twice a year which can either be banked or reinvested. If you set up an installment gearing plan where you put up some of your own equity and keep on borrowing bit by bit against it to accumulate more and more then over the years the funds value has the potential to return a nice bit of income.
Don't forget also that by regularly investing in mutual funds you will be dollar cost averageing so that over time you will end up buying more units as prices are low and less when prices are high! You can even use the income from your distributions to help pay off interest payments on your loans.
Property is another great investment. Sure it is capital intensive but thats what neutral or positive gearing is there for! If you want regular income then dont even think about negative gearing cause you dont want to take a loss (unless you want to offset some really really big capital gains tax from your trading!). If you can positively gear a property then the income from rent should just be enough to cover interest expenses etc with a lil bit left over. You can then borrow against the property's equity and invest in another home. I don't know about the tax laws where you live but here in Australia the interest payments used to fund investments are tax deductible so thats another bonus.
Edit: Talk to a tax specialist from your home country to get an indication of how to minimise your tax situation and also remember to invest your funds according to your own personal risk preferences. Seeing as you want to trade futures then it seems that your most likely an aggressive investor anyway
Good luck mate.