Pat and Ray -
If you're looking for frequent flyer tickets, many (not all) of the airlines open their booking 331 days out. Since ROAR II arrivals are staggered over a few days in September, the "start dialing" date will be 331 days prior, or early to mid-October. There's the airline award section of the forum for the tricks re: how to get the outbound flight when the inbound flight won't open up for booking for a few weeks. Happy hunting!
Edited: thread referenced above is in Silversea forum, "Dubai to Athens April 20, 2008 Silver Whisper BK Group Cruise"
Cindy - give David our best. We're pulling for him! AMEX platinum is a great option if better fares aren't available. We are looking forward to another trip with you!
Cheers, Anne