Directional Bias For The Day: S&P Futures are little changed; The odds are for a sideways to an up day – watch for a break below 4271.75 or a break above 4283.50 for clarity Key economic data report due during the day: HPI ( 1.5% est.; prev. 1.4%) at 9:00 AM S&P/CS Composite-20 HPI (…