Check out this thread: http://www.elitetrader.com/vb/showthread.php?s=&threadid=8621&highlight=globex
http://www.futuresindustry.org/images/fimag/july03evendor.pdf Very detailed comparison of TT, GLTrade, Pats, FFastfill and a few others. Large file it may take a few minutes to dowload. Worth it. Bsulli