I'm planning to diversify my trading efforts to DAX (and possibly MDAX,SDAX and TexDAX) markets. But in order to do so, I'll need level 2 data from those markets. And in a way that I can feed that data to my UNIX/SQL backtesting/trading platform. It would be most useful to have access to Eurex index futures/options too. So, do You have any recommendations about brokers/data providers? Ah, and I would like to test those systems for a few months, delayed data will do, for reasonably low costs.