Jetheat,
Search the forums for sentiment, you'll find some good posts. If the markets have been range bound like they have been for the last few days, it's a pretty good bet that they are ready to breakout. On the flip side if the market makes a big move usually the next day is a little slow. Some use Bollinger Bands, when they narrow start looking for a break.
Of course, it all makes sense after the fact, the Markets do what they want, just try and stay on the same page.
Just a poor Bear's thoughts
Good Trading
Bear
