According to Birnbaum's new guide, there will be some type of marathon at WDW from January 9-11, 2004. The book states that there will be something like 15,000 participants. Does anybody know what this does as far as crowds at the parks? Will it be too crowded during this time? We were planning on going to WDW from January 10-17, 2004, but we will change to the following week if it will be too crowded during this time. As always, thanks!