We are going on the 7 day Magic 9/16 double dip Western cruise. It was as easy as any other reservation. Look up the points required in one of the tables, and call member services. I need to bank a few leftover 2005 points, use all my 2006 points, and borrow just a couple points from 2007 to have enough for two of us. It also costs $75 for the exchange and $75 per change thereafter. I believe that the once you make the reservation, the points are no longer vacation points, but only good for exchanges from that point on. I don't plan on anything stopping us from going so I didn't study that eventuality too hard. I thought the value on that particular cruise was good enough to not investigate renting points and cruising on cash. However, the biggest problem is that will all my points gone, I couldn't resist doing an add-on.