Directional Bias For The Day: S&P Futures are lower; drifting down since NYSE session lose on Wednesday Odds are for a sideways to down day – watch for break above 2744.00 for change of fortune Key economic data due: Core PCE Price Index (0.1% vs. 0.2% est. and 0.2% prev.) at 8:30 AM Personal Spending (0.6% vs. 0.4% est. and 0.2% prev.) at…