Anyone familiar with the quality and price levels of the following professional quote systems: 1) Reuters 2) Bloomberg 3) CQG There is no viable alternative for non-professional traders in my opinion. Qcharts and eSignal are a joke. Surprisingly, Ameritrade's suite of products (i.e. Streamer, Level II, T&S, DJ news) is my favorite at the moment despite its obvious limitations. The layout is nice and the service is fast and reliable.