Once you've reviewed your investment options, you need to select a plan that will help you meet your financial objectives and needs, the income shortfall (or, if you're lucky, surplus) you project, and specific investments that will fill the income gap.
A word about diversification
One way to help manage risk, diversification spreads your dollars across a number of different investments that have varying patterns of risk and return over time. Although diversification does not assure against market loss, when you diversify, you're less likely to be hurt by the poor performance of a single investment type or be prey to such factors as interest rates, inflation and industry cycles.