My daughter got engaged at Cinderalla's Royal Table in Sept 2006!!!
My new son -in -law

had set it up with WDW though the dining reseverations.
We had our dinner(yes he proposed in front of her mother, father, sister and brother in law we all knew it was going to happen

)
For dessert a waiter brought out a plate cover with a silver dome, he set in from of her, lifted the lid and said "For you Princess

" on the plate was a glass slipper with a rose bud in side the slipper her ring was slip over the rose, and the glass slipper was sitting on a bed of rose peltals, the slipper was engraved with their names on one side and the will you marry me on the other.
He took the ring off the rose and got down on one knee and ask "will you marry me?" in front of us everyone else . The castle had gotten quite when
people started to notice something was going on. After she said yes,
and they kissed everyone appauded. For dessert they got white chocolate slipper filled stawberry and creme and the plate said will you marry me?
A photopass photo was also there to take pictures.
When the Fairygod Mother and the mice came out to do their show, the FG asked it any one had any special dreams come true and everyone pointed to my daughter, The FG and the mice made a big fuss of the ring and congradulated them.
It truly was a dream come true. I know my daughter will always remember and so will I.
So I would say just call WDW and something can be set up, give them an idea of what your brotherwould like and see what they can do.
Congradations on the upcomming wedding
