From a lot of book I have read about investing, this seems to be the common message. They all say paying big bucks to have "smart" people mange your money will never give you as good of a return if you just invested into the market. Even if a fund manager can out perform the market, the commission he pays to broker, the tax he pay for gains, and on top of the cost for his time will diminish his strong return. This is one thing I want to emphasis when people are looking to invested into actively managed mutual funds, most time they don't show the return after accounting for all their expenses. Let say a fund advertise a 10% return, it might only actually be a 7% return when you calculate all their fees.
Anyway, my thoughts are as follow, either invest in a passive index fund that tracks a market index or manage your own portfolio. In one my earlier post I gave some advice on how to get started. Invest wisely, but remember, wealth building is a slow process. Slowly but surely you'll get wealthy.