You might take a look at the forum here: http://www.wealth-lab.com/cgi-bin/WealthLab.DLL/categories With all respect to the other forums and programms but I would say that you find some of the most inteligent people there and very good discussions regarding systems. Over 12.000 members and all just interested in system design, testing and trading. Over 3000 posts last months. To find what you are looking for you just use the search.