I'd like to use eSignal as my data feed and am considering various brokers. I'd be interested in any experience that folks have had in this area. Which brokers integrate best? Is there a big disadvantage to using an unintegrated broker like Datek? Which brokers give the best value and service in this context? I want to use the broker for day trading. While I've been investing for several years I'm just starting in day trading (I've been paper trading and demo trading for several months). Thanks for any advice.