Heather,
Unfortunately at this time they do not have the schedules up yet for March 2010, so I can't suggest specific parks on specific days to take advantage of Extra Magic Hours. But that is just a small part of how you should schedule your days.
I always recommend that for your first full day and your last day you visit the Magic Kingdom. Any trip, especially with kids, should start and end with the big park!
For the dining you suggested, I would do the following;
- Hoop Dee Doo Review: A good dinner on a Magic Kingdom or Animal Kingdom day.
- Chef Mickey's: Also a great dinner for a Magic Kingdom day, but also on an Epcot day.
- Akershus: Obviously an Epcot restaurant, but a late breakfast time or a lunch or dinner meal can make getting a reservation easier.
- Tony's is obviously for a Magic Kingdom day.
Send me back a question with how many park days you have in total, and I can make more dining recommendations, including counter service choices. Also let me know where you are staying, so if there are good in-resort recommendations, I can make those too.
Have a magical (and delicious) vacation!