Well I pulled it off! DH was very surprised when he read the card that I made that revealed the trip. He just kept saying "No way, you are lyling!" "What about work?" He thought we were going in a few weeks, he could not belive that we were leaving in the AM. 24 hrs later were we waiting to ride Space MT. and DH was looking at me saying,"I still can't belive that I am here!" I was yelling HAPPY BIRTHDAY all the way down the first drop!
The whole trip was awesome! Crowds were heavy Sun/Mon over Columbus Day weekend, but we had fun anyway! He was laughing when I told him all the times he almost caught me and all my planning mishaps. This was one of the best things that I did and it was worth all the stress. Good luck to all you other planners!