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1. Investing in upcoming new schemes of lands/plots
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I assume you are in USA, the prices of all the real estate is at historically low, its available in dirt-cheap rates. Now if you have believe on United States, that it will restore itself back to glory days. Then owning real estate is a great option, Obama Administration is also giving tax-breaks for new home owners. A great time for those, who has cash !
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2. Investing in bonds
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In the traditional sense: You can purchase, for example, government bonds whereby you invest 1000$, on which the government will guarantee you a 4% annual return. But you already pointed-out only Islamic so this is not halal. Even in Pakistan when you invest in Gov-Bonds they are haram if they are not issued as Islamic Bond.
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3. investing in Gold (if yes then what in gold as in Jewelry set/ Bangles or /Gold bar)
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As soon as global market starting to recover, Gold will fall like autumn leaf. After the G20 summit in London this month, it looses more then 20% of its value, and if you didn't read the press release by IMF, they are going to sell their gold reserve this summer, this will drive down gold prices further atleast 20-35%. Final verdict is, nope gold is not a good investment today !
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4. investing in other currency (eg. Dollars/ pounds)
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This is for pro's .. i simply won't recommend this for beginner's at all.