Directional Bias For The Day: S&P Futures are down; moved up from a low of 2792.50 at 10:00 PM on Sunday; Odds are for a down-to-sideways day – watch for break above 2802.50 and break below 2797.oo for clarity Key economic data due: Existing Home Sales (5.38M vs. 5.46M est.) at 10:00 AM Markets Around The World Markets in…