Where to invest my 2011 Roth Contribution?
A little about me. I've posted on here a few times in years past. Now I need some help. I'm 31 and earn $85,000 per year in a federal job. I've been with the feds for 8 years, and I can retire at 57 with about a 1/3 of my salary in pension income. I'm single with no wife, no kids, and no mortgage. I have no debts. My assets are as follows:
Money Market - 140k
Individual Stocks (Mostly U.S.) - 98k
S&P 500 Index Fund in brokerage account - 24k
Roth IRA - Vanguard Total US Stock Market - 49k
TSP (401k) - 2040 Target Date Retirement Fund - 138k
I'm looking to put my 2011 contribution of $5000 into my Vanguard Roth IRA soon. I'm not sure if I should just add another $5000 to the Total Stock Market Index Fund. I'm already heavily weighted in U.S. Stocks. I was thinking maybe a bond fund, or REIT, or Commodities Fund, or Emerging Markets Fund. However, I'm concerned that some of these funds have already hit a bubble or will be hitting a bubble very soon. Do you have any advice for me?