Making an online stock trading account may be a good idea because you will not only have access to the market but you will benefit of other services that could help you increase your profits.
Scottrade
Scottrade offers one flat rate for online market AND limit orders no matter what the trade frequency, the number of transaction shares or account balance happen to be. Stocks under $1 are just $7 plus 1/2% of principal. Also, you can link together all the account you have with them so when you login into one account you can view the details of all.
