When we rebooked in Nov. for 10/30/04 the difference for a family of 5 was just over $2,000 and booking two connecting rooms would be less expensive than a cat. 4.
A Western cruise in Nov. 2005 for a family of 5 would be approx. $12,000 for cat 1, $11, 500 for cat 2, $9,800 for cat 3 and about $6,300 for a cat 4.