Etrade, Ameritrade, or Scotttrade. They are all cheap discount brokers who charge you around 10 bucks a trade. Go to a broker in your town and it will cost you at least 50 bucks a trade.
Thanks guys. I am in the Cayman Islands attending medical school and wanted to invest some extra cash...will do, I think I like e-trade, though my bank . Wells fargo seems to offer the same.