Tradestation and Easy Language are good tools to use for systematic trading. Tradestation's System Performance Report is something of an industry standard. It is used/shown in many trading books. By opening up a small account you can use the platform for free. Charges for the data feeds are reasonable. This is a good platform if you want to test intraday systems, as there are minute and other short duration quotes/bars in additional to daily ones. Easy Language code can be found in the monthly issues of Technical Analysis of Stocks & Commodities (TASC) magazine (at many B&N bookstores).