Ther SPY TrendX in the right side panel says it all. We're creeping into overbought levels and we should expect a pullback sooner or later. Based on this morning's action it may be sooner.
Since I'm always on the lookout for tools to make your investing more interesting and hopefully more profitable here's some from the desk of Peter Ponzo, the Canadian economist who created the Time Machine we update every 2 weeks.
http://www.financialwisdomforum.org/gummy-stuff/EMA.htm
Of course I've added several minor tweaks but the net effect is actually easy to use and quite reliable on a longer term basis.