Why would you want a savings account? Might as well just open a conservative money market fund and try to get the best returns with a highly liquid, somewhat safe investment vehicle. I'm going to invest in USAA's money market fund rather than save in a savings account for a 3-6 month's living expense emergency fund when I have the cash to pay for the initial investment. Already have a handful of shares of USAIX, their income fund just to motivate as well as force myself to save some money and keep it there.
Sorry, palefrost, I can't answer your question. It's not an easy one, if it were, everyone would be doing it. I'm no expert in investing by any means. A few hundred is not much at all, but you'd personally have to assess the risks you're willing to take with your money. You could go with a super aggressive mutual fund if you want to make some cash but be prepared to lose it.