If you organize things yourself online with the hotel can be very cheap by UK standards.
I spent including the flights, licence, ceremony bits and bobs (ie. make up artist, MC, etc), buffet for 100 (but over 170 turned up...), transport for the bulk of the family, bought the new wedding dress + hire of 5 maids dresses and 10 barong tagalog, couple of extra huge lechons, 21 nights at the hotel, etc... Altogether about £ 1.400...
The all inclusive hotel package was £450.
Cheaper than chips........
But I am sure I read a breakdown in the site somewhere.
Here it is http://filipinaroses.com/showthread....=wedding+costs
Found it..........
Good luck