Well I would say Get Away Today as the tix I find are quite reasonable if not the cheapest in price. The only down side to Get Away is that there are no extras, but if I can save any type of money then I am a happy camper.
I dont ever recommend getting them at the park or in a
Disney Store as you can get the same tickets cheaper else where such as
AAA, Getaway, Costco.
As for Costco I would also look into this... try this link
http://www.costco.com/Browse/Produc...935&lang=en-US&Sp=C&search=disneyland&topnav=
If you go between Valid for travel 1/7/08 – 4/24/08 and stay at a Disney resort hotel or these off site hotels you get the extras.... Anaheim Marriott Suites, Cortona Inn & Suites, Holiday Inn Anaheim Resort, La Quinta Inn & Suites, Portofino Inn & Suites, or the Staybridge Suites Anaheim Resort.
The extras seem to be Micky's Toon Town Morning Madness, Preferred seating in selected attractions in DCA, DTD fun card (one per package),
Exclusive Costco Travel collectible pin, lanyard, and luggage tag (one per person), Collectible Dream Coin (one per package), Magic Morning