Time for a little learning!
It sounds like you'd like to put this in a high interest, low risk sure thing that would make money in a smooth even way for 5 to 10 years, and you'd like to know what that is.
If we knew what that was, we'd all be in it.

After starting an emergency fund, it wouldn't hurt to put some of your savings in a short term CD (6 month - 1 year), or even ladder it so your savings earns a little something while you learn. And there are way worse places than an ING/Emigrant Internet bank account.
Check out some of the personal finance advice websites. Don't believe everything you read, but get a lay of the land. My favorite ones are
www.fool.com, Michelle Singletary (the Color of Money column in the Washington Post), Humberto Cruz (various). The Detroit News Money and Life section somehow speaks to me - its a good mix of basic and intermediate info.