20's

 Many indexs has found support around their 20EMAs, this is the same for SPX.  Right now the SPX is at its lower channel line for the hourly and for the daily, but has bounced off its 20EMA twice.  This may provide some support at these levels.  .
880-875 are key levels to watch.  If the market breaks below them it would trigger some selling.  On the flip-side 900 is key for the bears to watch.  Note the weak volume today as well.

XLF is also bouncing off its 20EMA.  But it is not able to break out above 11.88. 

VIX took a beating today but again the high 31's held as support.

One sector that did break its 20EMA is IYT, and if your a transport theory person this could be foreshadowing what will happen to the market.