I have been buying stock using Sharebuilder (including Disney stock) for the last three years. I have been very pleased with them. It is so easy. Simple set up an account. Indicate how you want to fund your purchases. I have a set amount deducted on the second Tuesday of each month from my checking account. Set up the stocks you would like to purchase and how much you would like to put toward the purchase of each. There are various plans for paying commission. You can pay by the stock (very small charge) or pay a set amount for unlimited number of purchases a month. I pay by the stock. Each month you get an email indicating that your monthly statement is available. You just set back and watch it grow. When you do want to sell, it is a set amount (around $20.00) regardless of how much you sell. You can even have the proceeds wired to your bank. I think it is a great way to set aside a nest egg for my DD. Someday, she will be thrilled at what she has accumulated.
Hope this helps!