M.G.
E.,
You are going at the right time - not just because it won't be as hot or as crowded, but between 8/16 and 10/3 or so - Disney is offering their basic dining plan FREE with a 5 night stay. Also, airfare if you are flying has been under $200 too.
You can book directly through Disney - all they need is a deposit of $200 REFUNDABLE on a credit card. If you pick up travel insurance and/or airfare now that is nonrefundable.
The offer is available thru mid-June but they only have a set number of rooms available with the deal.
As for where to stay depends on budget, location, etc... The budget are cheapest & smallest, the moderate rooms are 25% larger and come with minifridges (about $15/day otherwise if available at budget) and the Coronado has 2 Queen beds - beware budget & the other moderates are double beds and have long walks to catch buses on site... As for which Deluxe really a matter of taste/location. The Wilderness is supposed to be nice, but for me the theme holds no appeal since I feel like most of our vacations are up at the Wilderness in the Dells and I want to go where it is warm ;-). The Polynesian & Contemporary are convenient but older.
I'm going too in late September. Email me if you want to chat more.