We are spending about $15,000 total (actually $11500 b/c DF parents gave us a gift of $1500 and are paying for reception dinner that is about $2000).
We are having an escape wedding with 18 guests (plus DF and I).
Here is our breakdown:
Disney Wedding Package at SBP - $2950.00
Landau Coach - $1700.00
Extra bubbly - $190.00
Gown / Jewelry / Misc Accessories / Tux - $1000.00
Steaming - $85.00
Makeup/Hair (for myself and sister) - $290
Officiant - $150.00
Floral - $1200.00 (4 bmaids/groomsmen/parents/ceremony decs)
Photography - $690 (Randy Chapman wedding & engagement shoot)
Invitations - $108.00
Wedding Bands - $850.00
Hotel / Park Tickets - $2400.00
Flight - $400.00
Sea World passes / tour / dinner w/ Shamu - $400.00
Wishes Cruise - $300.00
Victoria and Albert Dinner - $300.00
The rest was spent on gifts for the bridal party, toasting flutes... bouquet preservation, cake topper, stamps, favors and I bought my sisters dress/shoes and stuff for during the ceremony.
Plus we figured in about $1000 for spending money "just in case".
Hope that helps

We went pretty heavy on the "extras"... so our actually costs includes EVERYTHING we are spending on this trip... not just what we are giving to disney. I think Disney is getting about $6500 for the wedding, and then the cost of the rooms/tickets and that's it.