So, the description of your event makes it sound like a special occasion dress is a good choice for you! You've had great advice already, but I wanted to pop on and say that it is a good idea to preplan a "special occasion" capsule. Recently, I did a closet check on this capsule myself. I decided that some of my dresses need to be retired. I have some good funeral options with black separates that I've used for concert wear (I'm a singer), and I've got the "church/out to dinner / ladies luncheon" covered. However, I don't have a great interview outfit (and I need a couple, as I'm job hunting), and I'm not happy with my wedding options, either. This is key, since I have a family wedding in August.