I have right at $7,600 in the account, as I have only been employed there for about a year. I currently have all of the funds automatically going into VTIVX, though I think I need to change that, as VTIFX won't grow and be as aggressive as I would like. At my age and considering how far I have to go to get to retirement, I believe I need to be looking at the more aggressive funds that have the opportunity for serious growth over time.
As far as the fees associated with my plan - well, I spent a little time looking my statements and didn't see any fees specifically being taken out and I read a summary of our plan at work and it wasn't 100 percent clear. So, I am not sure :(