Alright I don't get the part about having to get a broker with GlobalFutures. Isn't this covered with RCG or GHCO, or do I need to get someone else's services too?
I would go with RCG. I use SR lite. Most of your other questions can be answered here. http://www.globalfutures.com/support/faq.asp
OEC has really low mins. I think its 5,000, maybe less. good outfit. i used them for about a year. I'm with IB now.