Here is my suggestion coming from someone with straight hair. My hair will not hold curl long unless there is absolutely no humidity in the air. If I am looking to get waves then I do extenstions...
edit: Toni Brattin has extensions that are great through HSN...not too terribly expensive
she has all different lengths, different colors, different styles...I went on a cruise and was out in the NIGHT air and when we were through with the evening and back in our stateroom - my hair looked just as good as when I set out.
I think gold strappy sandals (Nine West)
and a little bag like this would be nice - Carlo Fellini Bag
just to give you an idea...what does the dress look like?