Watch out - you may end up spoiled by this trip

We were a moderate type of family, but stayed here in '07 when the kids were 2 & 4, thanks to a discount code & the fact that my Dsis was coming w/ us & chipping in some $. We fell in love w/ it & now can't stay anywhere else! To us, it's worth saving up for, not to mention that the kids want to go back & it works well to tell them we can't get something cause we need to save the money for Disney! I can totally relate to that pit in your stomach feeling - it was a lot for me, even though it was discounted.
We opted to let them assign us anywhere as long as it had a balcony or patio - If I'm paying that much, I wanted some outdoor space to use when the kids were sleeping! We ended up in Rapa Nui, which a lot of people complain about since it's further from the pool, but we loved it since it was right next to the TTC - very convenient for either MK or Epcot, esp w/ using strollers. It was nice to walk to the Epcot monorail.
Go & have fun & try not to worry about the cost - the convenience to everything totally ended up making up for the money.