TBS, glad it went well. The 1000 GP points for Diamond amenity is always an option at North American Hyatts (except some Park Hyatts, e.g. Philadelphia where the amenity is pre-positioned in the room). The form that David may have shown you lists this 1W point bonus at the bottom.
Unless the hour is very late, I take the amenity form to my room and decide later. This allows you to quiz room service about the food/beverage choices, and/or substitute something, which they are usually happy to do. Or decide you want points after all.
FYI: the SFO Regency Club is closed for the holidays until January 8, 2007.