Hi, i did my ROM and lunch at Amara Sanctuary...
Amara Sanctuary has nice food and nice ambiance (glass dome).
My photographer was from Portrait Gallery. http://www.portraitgallery.com.sg/
You can also check out Black Box Photography. http://www.blackboxphoto.net/Weddings/weddings_packages.htm...
hihi... about guest list, are you handling all the "Save the Date" and tracking down of RSVP yourself or hiring someone to do it? i'm looking for someone to do the coordination and wonder if you have any contacts? :) btw a nice vendor for invitation cards: Papy Press
All the best!