I already own 50 shares of AAPL and couldn't be happier with my decision. I bought at 55.37 and I've made almost $800... almost enough to pay off the eMac I bought. I'd like to buy some more. I beleive in the Halo Effect (because it happened to me) and I think I'd be smart to put more money into Apple. Should I buy from online brokers like eTrade, Ameritrade, etc? If I buy another 50 shares, how much will I expect to pay? Can I trust them? How much less expensive will it be than an actual stock broker?