I finally found a real-time market scanner that allows me to quickly identify trading opportunities without the need to be constantly going through my list of 300 stocks and checking their charts. Actually, it was a bit impossible and often I would miss the trades.
Then a friend of mine recommended StockVision (http://www.garsworld.com/) and trading stocks became more systematic and effortless. I hope that you will also find it useful and improve your trading results.
Enjoy,
Nick