146335 Stock trading simulation

I require a share trading simulator game, web-based using PHP and MySQL. The stock data will be derived from Yahoo! free data and it will be based on all American stock exchanges, also needed code o download data from Yahoo finance. The features of the software will be: - Accounts and login - Prices of 'world' of stocks updated every 1 minute on a cron script during trading hours (10am-4pm) - Buying and Selling based on current funds during set hours - Current Portfolio - Trade History - Multiple Competitions - Multiple order types (long orders, short selling, limt orders, stop loss orders, buy to cover orders) all available for day or good till cancel - Leader-board - Graph of each player's capital - Admin Section (where start/end of competitions can be set, starting cash and other program settings) This needs to have a simple interface as it will be used by students and teachers, I like the way Virtualstockexchange work and would love a similar interface just like theirs.