Investment is very personal, it depends on RISK LEVEL and PERSONAL ATTITUDE!

If I were you I would look at INDEX FUND (VFINX) as well as Inflation Protected Fund (VIPSX).
VFINX-75%
VIPSX-25% (contribution level is based on my personal risk averse nature)

goto www.morningstar.com and do some research on the funds I mentioned.

things to look for
1. Expense ratio (the money the fund manager will take every year from your investment) [less the better]
2. Growth Since Inception.[more the better]
3. Risk Level. [high risk doesn't always mean high gain]
4. LOOK FOR WHY I RECOMMEND YOU THESE TWO FUNDS.

I'm sure if you do your own  research you'll know why I recommended you these TWO funds....(hope you'll find more too).

[don't naively rely on my advise, as I am not YET qualified to be a FINANCIAL ADVISER]