Unfortunately Esignal is not really that cheap to use with NinjaTrader either: http://www.ninjatrader.com/webnew/eSignalSpecialNinja08.pdf...
If trading futures, I would be very careful about using Interactive Brokers. I started using NinjaTrader with IB but had to switch after multiple...
I have been subscribing to John's letter for about a month. Find it very insightful but have yet to find a way to really make money off of it.
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