Take a look at TradersStudio. www.TradersStudio.com They have just released the beta for Version 2. I've used it for about a week and it looks great. It has the power of TradeStation but also gives you the ability of testing and optimizing across a basket of securities or futures like wealth-lab. The language is similar to visual basic and it has a migration tool that makes translating easylanguage trivial. You can use multiple data streams including fundamental data from any third-party source. No need to sign up with Fidelity. I've used wealth-lab developer for years and developed many WL scripts but after using TradersStudio for just a few days I've decided to switch to it for all my system development work.