http://www.openecry.com I use them and many here do. Platform AND data is free, which is hard to beat. Very nice platform IMO. Take a demo and see.
Many threads on this topic recently. I suggest that you utilize the search function as you'll likely get a more balanced set of responses since many are tiring of seeing the same basic question...
PFG Best for trading platform, free; IB for market data, $20 per month; Quotetracker for charts, $7 per month. $27 per month. Expect the best customer service from Quotetracker, minimal from PFG and none from IB. Been with all for years, however, I may change my recommendation any time in the future.