Too bad you aren't my husband either... everything fit except the kids, we just have kid, no s...
Anyway, last year I surprised my daughter with a trip to WDW. There was a trail of glitter all the way down the sidewalk leading to the door, where Tinkerbell left a surprise delivery. It was a envelope with a royal decree requesting her presence at the Pirate and Princess party, plane reservations, Disney ressies, etc. It was such a cool moment to see her reaction to the glitter, then realizing it was Tink who had left the stuff, then her reaction to each piece of info in the envelope... Fairy Godmother (aka me in the middle of the night) even packed our bags, because she was only told hours before we left...
You could do something similar, but maybe with a glass slipper on a pillow, a minnie mouse bride hat, or something at the end of Tink's glitter... Ask her to the ball...
I think the key to surprise trips is having every detail planned. Have at least your portion of the luggage packed, all the reservations made, know how you are getting from airport to hotel, hotel to parks if staying off site, time off work, etc... Try to tie in this trip to your honeymoon trip somehow... Remember where you ate, a place you stayed, the first ride you rode, etc... Girls like the little thoughtful stuff, and it is ok to point out the things that you remembered, too - she'll be flattered for all that you've done!
I can't wait to hear how it all plans out! I love surprises!! Good luck!
HEY HUSBAND OF MINE - DO THIS FOR ME!