This is going to be broken away from the typical severe weather discussion. Indications for a moderate to strong El Niño this winter, so here are somethings to expect with the current thinking.

NWS Norman, Oklahoma - Weak to Moderate El Nio Conditions Expected During the Winter of 2006-2007
NOAA - National Oceanic and Atmospheric Administration - NOAA: El Niño to Help Steer U.S. Winter Weather