Hi, I'm new to trading and my only experience is with spread betting. I have attended a few seminars and learned most from books and videos. I would like to practice on a live account, but wanted to keep small. I understand some brokers will allow you to trade what is called "trading on margin", which would allow me to trade the ES-emini for $500 or so. Can anyone tell me where I can find a broker like such? Any tips on how would be the best way for me to get started ? Thanks