Hi there Lynn and thanks for the great question! Finding the prices of the various Disney Dining Plans online can be a little tricky, so I have taken the liberty of listing them here below for you along with links to the benefits of each plan!
To answer your question about breakfast, you can use your dining credits for any meal in any order. You don't even have to use them all per day. Sometimes I will save them up for use later in my trip! That's one of the great things about the DIsney Dining Plan! It's SO flexible!
2012 Disney Dining Plan Prices (per night):
Quick Service Dining Plan - Adults $34.00 / Children $11.99
Basic Dining Plan
-Adults $51.54 ($53.54 peak season*) / Children $15.02 ($16.02 peak season*)
Deluxe DIning Plan
-Adults $85.52 ($89.52 peak*) / Children $23.79 ($25.79 peak*)
**Peak Seasons: 2/16-2/25, 3/9-4/14, 6/1-8/4, 12/21-12/31
Here's wishing you a most magical (and tasty) visit to the Walt Disney World Resort! -Amanda F.