Yup, I'm going March 14-19.... I'm a college student and I'm going with my friends (but you have nothing to fear from us, we're a bunch of nerds lolol)
This will be the third year in a row I'll be in WDW during the Ides of March. The first year was EMPTY, it was great. I think people were afraid of traveling because it was still the aftershock of 9/11. The parks were open late, we did E Rides, we got on the best attractions with no wait at all.
Last year, that was the week the US declared war on Iraq.... there were helicopters constantly flying around, and the parks closed early

even though it was pretty busy. The crowds were substantial last year, but not as bad as during the holidays.
Gosh, considering there's been some major US/Iraq thing affecting our trip every year, I'm afraid to find out what will happen this year! If I had to guess, I'd say the crowds will be bigger than they've been in the past couple of years. Plan plan plan, go to the parks in the morning or evening, and make any dinner reservations well in advance.