first off, congratulations on getting married! how romantic to pop the question under the eiffel tower.
go to
www.disneyworld.com to check out the resorts and their prices. there are also so many sites out there with lots of pictures of the resorts if you can't decide where to stay. then, i suggest you call disney once you decide on the resort and how long you'll be there. mention that it'll be your honeymoon and see what they will do for you in regards to room upgrade.
there are sooooooo many things to do at WDW during your honeymoon. for starters, a nice day at the Grand Floridian spa would go nicely. i suggest getting a massage where the both of you are in the room together. we did that on our last trip and had a wonderful time.
http://www.relaxedyet.com/services.shtml will clue you in on the services provided.
there is also the Wishes Cruise and Illuminations Cruise. you'll have a better chance of booking a wishes cruise because illuminations is just so popular. i don't know the phone number off hand to book the cruise, but i'm sure someone here will give it to you before i can find it.
a nice romantic dinner at California Grille would be a great way to end a day. the food is outstanding there, along with the view. try to get a table where you will see MK. also, try to be there to see Wishes. it's amazing. you can either watch it inside the restaurant or on the balcony.
these are some ideas i have so far. i'm sure others will post their ideas as well. i hope i was of some help to you.