ThinkOrSwim (owned by TDAmeritrade) is making available Prodigio – automated trading technology integrated directly into ThinkOrSwim trading platform. All you need is existing ThinkOrSwim funded account (they also have paper trading accounts for testing) and to send email request for Prodigio activation. After it is activated it will appear in your regular ThinkOrSwim Desktop application. It has drag-and-drop visual interface to set up your trading strategies so there is no need to know how to code (No need for ThinkScript). Check out introductory vide here:

http://training.prodigiorts.net/wlvideo/wizard_lab100512_final.html

Prodigio website here:

http://www.prodigiorts.net/