Hi Connie!
I love hearing from great guests like yourself who are looking to plan ahead and get the most out of their Walt Disney World holiday!
If you'll be arriving at Walt Disney World on December 1st, you'll be able to make Disney Dining reservations online for your whole vacation beginning 180 days prior to arrival - which is Monday, June 4th, 2012!
Park hours are usually posted for the upcoming six months, so you will likely find those posted at about the same time ... possibly a few days sooner. Check the site regularly for updates to the calendars in the days leading up to your ADR window via this
Park Hours link. Simply input December 1st in the window at the top of that page to see the December hours for all four parks once it has been posted.
I'm so glad to hear that you LOVE planning. It really IS so much fun and I love it too! I hope you'll visit me again with more great planning questions!
Wishing you a Magical time as you begin planning your time at Walt Disney World Connie!
Kirsten