How to get park times earlier than 6 months?

[Raenstoirm]

We are looking to go to WDW in late march as my sig says, but we haven't officially booked yet. We are waiting till the April calendar comes out to pick days that have the longest hours (we tend to be night people at the parks). Since we are flexible with the dates of the trip we are waiting to we get the schedule. Anyone know where i can get the April 2008 calendar a week early? I really want to book now and not wait another week!

 

[all4fun]

I believe this is something Disney has to release to the general public
ETA: why not just go ahead and book it and if the hours aren't what you expected you can always change your dates, right?