Hi Chris,
Sometimes vacationclub.com (marriott's vacation club site) has specials that come up when you punch in various dates of travel. I punched in October 10 through 14 and some various specials came up. It looks like there is a Seaworld and Disney special package. I think the Seaworld package is the better deal - tickets for 2 adults and 2 kids for the length of stay in a 2 bedroom for 4 nights for $822. Just go to vacationclub.com and then resort directory and pick Marriott Horizons. Then you can punch in various dates. If you call them, they might be able to tell you what specials are available for certain dates. Sometimes they have Disney Visa specials, too. If you pay with a Visa, you get a special rate on a 4 or 5 night package at the Orlando Marriott vacation club resorts.
Good luck.