get the free were on our honeymoon buttons at guest services at one of the themeparks.
the martinique rooms at cbr seem to be on the quietier less kids side when we stayed there back in 03. as for something special there arrange for wine/champagne or strawberries (room service), flowers or balloons (disney floral) to be in the room, or mickey & minnie bride/groom ears (disney merchandising).
epcot world showcase is so fun to stroll around, shop & eat at. our favorites are le cellier in canada superb soup & filets, alfredos in italy great homemade fetticine alfredo, bistro de paris is intimate & romantic, the biergarten in germany all you can eat buffet.
the boardwalk is also fun & romantic at night. we also like kiminos at the swan good sushi & fun karoake at night. you can get there easily by boat from mgm or epcot.