Good decision Jack - you'll love it.
Another few trips that I haven't seen mentioned yet...
1. A luxury riverboat cruise down the Mississippi. Not well known, but I've heard people rave about it.
2. If you enjoy things more "natural" - a Windjammer cruise
3. If you prefer things more "risque" - a Club Med experience
4. If you prefer cold weather activities - Lake Louise, Banff Springs or Whistler in Canada.