Hi Lilandvisma!!
I just read an article about Disney planning and it said that the VERY BEST time to to go Disney is for the Superbowl. It said it was the lowest park crowds of the entire year!!!
I can't remember exactly where I read it, but it was a reputable planning site.
BUT... looking at Touringplans, here is what I found for your dates:
Wed, 02 Feb '11 1 MK EP HS AK
Thu, 03 Feb '11 3 EP AK MK
Fri, 04 Feb '11 5 MK HS EP
Sat, 05 Feb '11 6 MK HS
Sun, 06 Feb '11 7 EP MK Superbowl Sunday
Mon, 07 Feb '11 5 HS AK
Tue, 08 Feb '11 2 MK HS AK EP
Wed, 09 Feb '11 2 MK EP HS AK
So it reads like this... the number after the date is the crowd level (one being the lowest crowd, 10 being the highest levels). The parks listed after the number are the parks that are the best to go to that day, and the one park listed last is the park to avoid. I tried to break up the list a bit, so it would be more easily read, but I can't do that in a post, apparently.
This would show that Superbowl Sunday is the worst day during your trip, but still manageable. Check out those 1 and 2 days!!!
Hope that helps your planning!