I've looked through the archives on scanning and backtesting software and there are quite alot of possibilities. But what I'm looking for doesn't need to be very complicated, so I was hoping someone could point me to something cost effective and reliable. Without giving away too many secrets, I've come up with a simple, yet profitable system using just bollinger bands and the MACD histogram. More specifically, I'd like to scan stocks that are either at the upper end, lower end or middle of the bollinger band and for a certain level on the MACD histogram. I tried TC 2000, but they don't have this type of feature. And I've heard negative things about using Tradestation (maybe its exaggerated). Also, I'd like to run it in real time during the afternoon looking for the days candidates to buy at the close. Waiting until the market closes and buying the next day at the open seems to be slightly worse. Thanks.