hi - we want to book a 7-day for oct. 2003 - we've always booked while on land - but we're thinking that we may get a better deal if we book on-board - is the only deal a shipboard credit - we've used our dc membership and gotten shipboard credits on our past cruises - are they the same shipboard credits - we'd like not to have to put a $1000 charge just when we're coming back from vacation - but if we get a good deal we might - thanks for your help - kiddisney