Over in the cruise section they were talking about this in Magic UK Cruise meet thread. I had a look at it and honestly I wouldnt. As PP said, its about a 3 hour drive to Disney each way so you are looking at around 7 hours travel time. With a port time of 11 hours, you would just barely get 3 hours in the park, right in the middle of the day when the wait lines are the longest. Add in time to eat and realistically you are looking at probably only time to do 2 rides