Directional Bias For The Day: S&P Futures are higher; The odds are for a sideways to an up day – watch for break below 3067.50 for change of fortune Key economic data due: Prelim Non-Farm Productivity (-0.3% vs. 1.0% est.; prev. 2.3%) at 8:30 AM Prelim Unit Labor Costs ( 3.6% vs. 2.2% est. ;…