I do not know how often you trade, and what do you need , but i used to use IQcharts, and until i started daytrading they worked fine for me, and they are less expensive than qcharts.

http://www.iqchart.com/iqchart/

I think you can install their programm for free and try it for free for a month. You can always call them and find out the details.
1-877-447-7901

Alex