I USED TO USE GNI , I NOW TRADE VIA WWW.GDD.CO.UK.
THEY USE THE SAME SOFTWARE PACKAGE AS GNI , IE PATSYSTEMS , BUT THEY ARE CHEAPER FOR THE ACTIVE TRADER, NOT PERHAPS FOR THE VERY HIGH VOLUME TRADER BUT I TRADE BETWEEN 25 AND 100 CONTRACTS A DAY ACROSS LIFFE,EUREX AND THE US .
EITHER GDD OR...