For your $20,000 investment, you might want to look into Treasury Inflation Protected Securities (TIPS).Wikipedia discusses this product here: http://en.wikipedia.org/wiki/Treasury_Inflation-Protected_Securities#TIPSI would also urge you to learn as much as possible about retirement planning. You are relatively young right now and still have time to save. You say that you might want to tap this investment in seven years... At that time you will only be 62 -- perhaps you should wait and retire later.Retirement Planning 101: http://www.newretirement.com/Services/Retirement_Planning.aspxRetirement Risks: http://www.newretirement.com/Services/Retirement_Risks.aspxAdvantages of Delaying the Start of Social Security: http://www.newretirement.com/Services/Social-Security-Benefits.aspx
I would strongly encourage you to investigate putting that money to work for you with minimum risk and maximum return. I am talking about tax liens. Several states offer as much as 25% return and the liens are backed by the property. Little known secret but the wealthy routinely put their money in tax liens for growth.