Check out the HeadFi of prudent investment: Bogleheads Investing Advice and Info. I'm Czilla9000 over there as well.
The key question is this: Do you want to invest this money or speculate with it? There is a difference between speculation and investment. Confusing to two leads to error and heartbreak. There is nothing wrong or immoral about speculation, but just be truthful to yourself. Speculation is exciting; investment is as exciting as watching paint dry.
If you want to invest it, Rinshin's advice is sound...in general a broad-based stock index fund (like VHGEX) is the right investment for a long time horizon.
One thing you should know - and you'll learn this over at bogleheads.org - is that market timing (timing when to get in and out of the market) is practically impossible. Nobody can do it. The best investors, including Warren Buffett, don't even try.
Experience: I'm just a college student (finance minor), and I'm pursuing the CFA (Chartered Financial Analyst) designation.
EDIT: It seems like you want to invest it, so check out bogleheads.org. 6% is a sweet deal right now if it's FDIC insured, so maxing it out is a good idea.