
I am planning a trip on the Dream in 2011. The reason the Dream is slightly more affordable for family of 5 is that the Wonder and Magic only accomodate 5 in Cat 4's and above but the Dream has Deluxe Family OV staterooms that sleep 5 priced as Cat. 8. Much cheaper. Prices now for non-peak weeks on 3-4 night cruises are not crazy yet if you have flexibility on travel dates. For 7 nights, you would need to do a back to back as I don't think the Dream is scheduled for any 7 night itineraries yet. You could consider the 5 night but I think prices are high on those already (since kids are out of school so those sell out quick) unless you look at beginning of Dec 2011.
I'm looking at booking a 3-night in Nov. 2011 on the Dream with 2 options. 5 of us together in a Cat 8 for $ 1,875 or 2 connecting staterooms Cat. 9 for $2,015. If we did the b2b with a 4 night, it would just under $2,300 for Cat 8. So b2b in Nov. 2011 on Dream for family of 5 in Fam OV Cat 8 is $4175.
Hope this helps! Good luck with the planning. BTW, I've never booked any vaction this far in advance! I figure Disney is like airline rates...You need to book early before the low seats sell out
