Thanks so much, everyone. The red dress is getting a LOT of love!!!! It's the clear winner.
Hopefully with the cutouts (!) and the lack of sleeves, I can wear it even if it's pretty warm outside, and at least the event is indoors in the evening, so the temp will probably be pretty reasonable regardless of what it's like outside. In fact, in true DC form, it could be freezing inside. I'll keep it, and work on getting another dress as a good backup.
Deborah, I will have to figure out some minimal makeup, I think, to pull of the dress, since it is a strong color for my lack of features. Too bad you are not here to teach me ; ).
Jeanne, I don't think I'll have any extra time, unfortunately. I'm sneaking in a weekend between teaching, and actually the whole family is coming (DH, kids, and my parents) - between that and the planned activities/events, I think I'll be booked. But I anticipate more trips to DC in the coming years, so we'll definitely have to have a get-together one of these days. Thanks for thinking of it.
Echo and Shiny, I'm glad you are on board with the red dress for spring.
Unfrumped and Columbine, thanks!
Suz, I did order a newer Talbots dress that just came online - it's more of a brocade (see the link above). It comes in fuchsia, your color! Not sure I can pull that off, though, but we'll see when it comes. (Honestly, I always have to look up how to spell "fuchsia").