Windjammer just posted their '05 schedule. Looks like they've got Singles cruises on the Legacy (?), Mandalay and Polynesia. While I can't speak for the first two ships, I was on the Dec '04 Polynesia cruise and had a great time. Have already booked the Dec '05 Polynesia trip to repeat the "experience". If you're into an adventure, you've gotta give it a try.