Hi,
We went end of Jan, 2004, and at that time, Paramount had the best prices. We actually went right to Paramount (about 10 minutes up the I-4 from Disney) and saved the delivery charges (just worked out that way). The breakfast vouchers were quite useful - valid for breakfast at various places (charactor too), and we used the vouchers for one of our buffet breakfasts at AKL that trip!
Was checking prices for a friend, and CAA was $2 more expensive for the kids, and $2 cheaper for the adults, but you wouldn't have to pay the shipping.
Best of luck!