Girl you are getting too stressed about this holiday already - I think you have pressed your 'panic mode' button

. We visited last March and we going back AGAIN this March only for MORE days!!! And you know what?- we are already thinking ahead to March 2007!
There is one fiework display on St Patricks night and then on top of that the daily parade in the park at 4.00 (this IMHO is the best parade for children to enjoy) -it is a lovely parade with many of the princesses (Belle, Snow White, Ariel etc) and with some pretty elaborate floats. Of course Mickey and Minnie have a float of there own (Steam-boat Willie) and the dancers that go with the parade add to the magic too! Ok so there is no night-time parade but honestly I don't think your little ones would have enjoyed this as much as the daytime parade. Last year (in March) the Fantillusion parade was on at night-time - as an adult I enjoyed it but my 4yr old DS had to be taken back to the hotel a few minutes into the parade as he was really VERY frightened when the baddies appeared and the music became scary. Even my 7yr old will tell you that he much more enjoyed the daytime parade! And don't forget there is also a smaller parade daily in the studios plus there are always characters wondering about for photo-opportunities and autograph collecting. In the studios Mickey (and sometimes Minnie) make a daily appearance by there own little caravan each day - where you can buy a photo of your child with them (they are not really cheap but a must for a first visit).
You know you WILL have so much fun. I think it is extremely hard to appreciate how much there is to do (beside the parades) in the parks - the official website certainly doesnot give a real impression of the scale of the park and how many little things there are to keep you busy!
What with the rides in the park and those in the Studios, the two parades, Lion King, special character meals and character pictures, the stunt show, Cinemagique, Animagique and those rides that the children want to go on again and again (!!), plus all the walking and the facilities you can enjoy at the hotel - well lets just say you will have to work hard to cram it all in
So relax a little and enjoy - you have (probably) paid a lot of money for this holiday and it will be worth every penny.
(edited to add: If you want some more persuading - PM me your email addy and I will email some pics from our holiday last March from the daytime parade etc)