We haven't been yet, but I want to go one day SO badly.  Close friends and family have gone themselves and have nothing but amazing things to say about it.

 As we've looked into it, I've never heard of a seasonal discount.  I think most people will take a Disney cruise no matter what time of year it is.   You certainly are more likely to have a less crowded cruise if you go during the schoolyear.   One suggestion would be to call and see if they have any empty cabins for a cruise about to sail.  They might sell you those at a reduced rate.

 Disney Cruises are worth EVERY penny!

It used to be possible to pack a bag and show up a few hours before a ship was departing, and get amazing rates.  Those days are gone now, due to the new security regulations.  If you can book during the last two weeks before sailing, there are big discounts on some cruise lines.

 Remember that you now need a passport to go on a cruise.  There are no longer any foreign countries where US citizens can travel using just their birth certificate. 

My whole family (12 people in all) went on a Disney Cruise in 2001, but before the 9/11 attacks.

We got really good rates going just after the first of the year in mid-January. The holiday crowds had died down, because most of the rugrats had gone back to school. The cruise was certainly doing good business, but it was far from full. We had a great time.

Is there alot of entertainment around if you don't have kids? I would love to go on a cruise, and for some reason Disney sounds very appealing.

It just depends on what you like, FourBear. I love Disney movies, so I was very entertained by the animated classics being shown on television. Similarly, I enjoyed the new release Disney movies in the theaters and the live performances of classic Disney moments.

There were some more adult activities, like art auctions (Disney sketches, natch), Bingo, karaoke, lectures, etc., and the restaurants were wonderful--you won't find better food anywhere.

The one thing that I did miss was a casino on board ship. I enjoy playing blackjack after dinner when the cruise ship has left port and I can have a couple of drinks and visit with other players.

But if you're not a gambler, that shouldn't bother you a bit.

My best advice? Go to the Disney website and look at their materials or request a brochure so you can look over the activities and decide for yourself if they seem interesting or not.

Late Fall is the best time to book a Disney Cruise, rates drop a bit but not much. Disney knows they own the family market and don't discount often. Bookings would have to fall off quite a bit to notice anything over a $100 per person drop (5-day).

Families love these crusies because the focus on kids. Plenty of daily activities and a safe monitored enviorment.

However, as an adult you must really like Disney to get much more than relaxation out of their cruises. They offer no casino, no smoking anywhere, limited alcohol outlets, and private ports of call. This may not seem to bad if you don't gamble, smoke or drink, but only visiting private islands limits you to purchasing products approved by Disney. Which means highly overpriced and run of the mill. You also lose some of the carefree devil may care feeling of normal cruises. Just imagine watching that little mermaid video your daughter likes, 24/7 all week long.