We always stayed at the Embassy Suites in Lake Buenavista (sp). It is around the corner form the WDW main gate. Free breakfast for three kids saves a ton of money. We get up early and are usually in the parks right when they open. Between open and around 10/11 the parks are very manageable. After 12 noon forget about it. We usually wrap up our day around 3. Hit the pool at the hotel then chill. Sometimes we would go back to the park at dusk to catch the fireworks. The trick is getting to the parks as early as possible!!!

This thread has reminded me why I don't want to go back to WDW. It was a nice vacation when my boy was in Kindergarten with lots of memories... but far from being a relaxing trip.

Read tripadvisors reviews from last Spring Break and you'll reconsider. You oldest is still young enough to pull out of school for a long weekend and not impact schooling. We went during Star Wars weekend last May. It was awesome but also tiring (my kids were 4.5 and 6.5 at the time). Rent a stroller for the younger one. We used Kingdom Strollers. They were great. Also to stay on Disney property, be prepared to spend a lot on hotel and only 3 properties are on the monorail. Otherwise you'll be busing it to the parks. You get used to it but it does add to time waiting, etc.

Do your research beforehand too. Most sit down dining is already reserved. Folks reserve 6 mths in advanced.