Time to short S&P 500 ? Depends on Fed Meeting Wednesday

We are coming to a definitive point in the markets.  The Fed will be announcing its meeting Wednesday, which will really set the pace of the next 3-6 months.  The chart below shows also a short signal.... Slow stochastic is getting into overbought territory and the 50 day MA resistance is right above the current price.  A touch of this level at 1226 could be an optimial short entry with a tight stop above this level.  If the Fed disappoints the market, look out below, however there has been talks the FED announcing some form of stimulus which is not priced into the market (ie surprise).