Ditto on the spartan funds, and the spartan advantage class funds (for $10k+?? min investment). Decent index funds with very low ERs.
Fee free trades of many ishares etfs. IVV SCZ IJR IJS to name a few index fund ETFs that are fee free (large cap, intl small cap, US small blend, US Small value, respectively). Easy way to save $8/trade and get some relatively decent ETFs if you are into index funds.
Retired in 2013 at age 33. Keeping busy reading, blogging, relaxing, gaming, and enjoying the outdoors with my wife and 3 kids (4, 10, and 11).