Ours is the week of March 31st. I thought that was early but you have us beat! Good thing about being early is you can take advantage of that new discount if you were planning on going down there then. Youngest DS and I are dome tenting at FW that week but no discounts for us!
You aren't alone. Check out this running thread from the Theme Parks Attractions and Strategies forum Post Your 2003 Spring Break Here
Texas appears to be the only significantly large population area with a large number of spring breaks listed during the week of March 10. I see many listings for FL, NY, NJ, MA, IL and MI scheduled for later in the season (and a few earlier). Don't see much for OH or CA, but the few listed are also outside of your time period.
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