Kim and I have done this several times.  There is nothing in the world like leaving GR in ICE AND SNOW in February and getting off a plane where it's sunny and 85 degree and there are flowers blooming and birds singing.

Fox News just did a story about the top ten cruises, and most of them are so far out of reach it isn't worth wasting our time.. But here is one that could work...

If you price this, it's less than a trip to Disney Orlando....

Ships: Disney Magic and Disney Wonder (2,700 passengers each), Disney Dream and Disney Fantasy (4,000 passengers each)
Destinations: Alaska, the California Coast, the Bahamas, the Caribbean, Europe, the Mexican Riviera, the Panama Canal and Transatlantic
Cuisine: Round-the-clock options including themed restaurants and exclusive dining rooms for adults
Highlights: Broadway-style Disney musicals, character-themed pools and deck parties, the Oceaneer Club for kids, and nightclubs and lounges (complete with cocktails) for mom and dad.

And then let's say you hit the lottery...

Butterfield and Robinson Cruises

Ships: Isabella II (37 passengers), Kaya Guneri V (12 passengers) and Nostra Vita (10 passengers)
Destinations: Asia-Pacific, Europe, Africa/Middle East, North America and Latin America
Cuisine: Leisurely lunches in secluded coves and impromptu stops for dinner on deck beneath the stars
Highlights: Exclusivity, flexibility and local contacts to set up unique onshore events.

$$$$ If you have to ask, don't bother....