I am demoing this combination for 7 days to see how IQFeed compares to Esignal w/ Ensign. So far, pretty good. Using Ensign with IQFeed runs me about $120/month for NYSE/AMEX/Nasdaq, OPRA, and CME/CBOT eminis. I can also use IQFeed with Quotetracker, which work great together so far too. I'd love to hear from anyone else using this combo or the IQFeed with Quotetracker.