But how's the buffet? Here's the opportunity you've been waiting for: a chance to spend several days with her aboard the Silver Wind luxury cruise ship. Former Secretary of State Condoleezza Rice, former Soviet leader Mikhail Gorbachev and former Defense Secretary William Perry are some of the 'keynote speakers' for a 17-day late-summer Black Sea cruise sponsored by the Harvard Alumni Association and others. It's part of the 'World Leader Symposium,' though technically we're talking ex-world leaders. Cheap suites run you only $48,000 a couple; roomier ones cost $80,000. Okay, so you might think this is expensive, but what other time would you get Bill Perry to guide that visit you've always wanted to take to the former Soviet nuke stockpile in Pervomaysk, Ukraine, now a 'field of sunflowers'? Priceless. 