I am just now looking to invest some money in some penny stocks and such. Nothing serious, just a couple hundred bucks or so....just to learn how it works and get started. Which platform should I use with regard to making LOW DOLLAR AMOUNT TRADES... Scottrade, etrade, ING, forex, etc.... When I say low dollar amount, I mean around $200.00 per transaction...that seems like a good dollar amount I can learn the ropes with.