Hi David!
Welcome to the Disney Parks Mom Panel! I am so glad someone is getting warm weather because most of the USA, except Florida of course, is in a deep freeze.
The short answer to your question is
NOW.
You should consider booking your
resort very soon. There are many resorts which are close to the different theme parks. Two of my favorites are
Disney's Polynesian Resort which is located directly across the Seven Seas Lagoon from the Magic Kingdom and
Disney's Beach Club Resort which is a short walk from the International Gateway entrance to Epcot.
Once your resort is booked you can begin making your dining reservations.
Advanced Dining Reservations can be made beginning 180 days prior. If you are planning on an arrival date of August 26, 2014 you can begin making your dining reservations on February 27, 2014.
This should give you a good start to your Disney planning. If you have any other questions along the way please come back and see me.
Wishing you a magical Disney vacation and pixie-dusted day.
Sue N., IN