We did this last Friday night (4/4/03) and I can tell you honestly that it is worth every penny. To contact chef Gordon, call the resort directly and let them know you'd like to schedule a private affair. They will take your name & email address, and Gordon will contact you shortly afterward. He will email you with his menu, but you're free to make any changes you'd like.
The cost for two people is $150, which was a great deal considering what a nice dinner it was. You'd easily pay almost that much for a nice restaurant meal in HH.
If you'd like more info, send me a PM and I'll give you more details.