If you are considering staying at one of the SeaWorld hotels (official and partner), they are currently offering stay two days, get one free up to Christmas Day:
http://commerce.4adventure.com/ESto...o vacation packages&__utmv=-&__utmk=143257525
Discovery Cove is running a $189 pp special now through the end of 2012 if you pay with your American Express card (that price includes your dolphin swim,...day resort admission is just $129 pp). Remember, when you purchase a day at DC, you get 14 days of admission to both SeaWorld and Aquatica as well

.
http://discoverycove.com/CP/?page=American Express
Plus, there's the SeaWorld Fun Card, where you pay one day's admission and get the unlimited admission for the rest of 2012 at no charge.
http://seaworldparks.com/en/seaworld-orlando/Pages/Fun-Card