Shrink,
I was in Orlando with the family from Dec 19 - 26. Parks were a little crowded but not crazy. Blizzard Beach was the least crowded and the lines were not bad. If you go to Epcot, fast pass the ride in Norway (the line moves VERY slowly) and fast pass Soarin' (great ride). This will save you a ton of time.
When I left, the club soccer crowd was just getting there (saw a couple of Dallas Texans shirts).
Two observations on the Orlando parks in December 2008:
1. Well over 50% of the people down there are from outside the US. (Their economy is obviously better than our's).

2. Many folks O-60 working in the parks (I'm sure some retirement accounts have taken a beating).
