I have no clue really and was in your same position a couple of months ago. Since then, however, we've instead decided to do an 8-night Disney Cruise this coming summer, leaving out of NYC. I have much younger kids so the whole WDW experience was really overwhelming for me. I figure with the cruise we still get a Disney experience (including one day at WDW) but a whole lot less stress! We've cruised out of NY once before (before we had kids though) and LOVED being on vacation immediately rather than dealing with airports/planes/trains/etc. Just wanted to throw out an idea.
Otherwise, DISboards seems to be a good planning board.
Anna, mommy to DD 11/06 and DS 3/10