I agree with strike and would steer well clear of any "black box" systems. I got caught years ago with one when I was new to trading and looking for the golden goose. They don't work.
You might want to check out the automated Portfolio feature that I do use (link below). It is paper trading only but it does allow you to set your own buying and selling parameters on either a global or stock by stock basis and operates on live market data.
Being automated it is emotionless, unlike us humans, and its cold, hard approach has returned 81% since June this year. I do pick the eyes out of it and follow some of its trades more often than not. It's probably the closest thing you'll get to a program that will tell you what to buy and sell with the fact that you can tweak all of the parameters.
In the end the real purchase decision is your own and that's the easy bit. The hard bit is selling. Always adhere to your stop loss settings and never trade without them.
