from disney web site:
Costs of the Quick Service Dining Plan 2010:
Adults (Ages 10+) : $31.99 per day
Children: (Ages 3-9): $ 9.99 per day
2011:
Adults (Ages 10+) : $34.99 per day
Children: (Ages 3-9): $ 11.99 per day
2011
Disney Dining Plan
The original Disney Dining Plan stays the same as it was during 2010. With this dining plan you receive:
One (1) Table Service meal
One (1) Quick Service meal
One (1) Snack
for each night of your stay.
Costs of the Disney Dining Plan
For 2010:
Adults (Ages 10+) : $41.99 per day
Children: (Ages 3-9): $11.99 per day
For 2011:
Adults (Ages 10+) : $45.99 per day (regular season) / $47.99 per day (peak season)
Children: (Ages 3-9): $11.99 per day (regular season) / $12.99 per day (peak season)
I believe DVC pays the regular price regardless of season, but double check with MS.