Thank you everyone for the ideas and suggestions, these are great!
By the way, I did stop at a thrift store yesterday and tried on a bunch of dresses, unfortunately I didn't find any that were exactly right. I'll keep trying.
DonnaF - My favorite is the Treasure & Bond dress. Very nice. I may wait for it to go on sale also.
BrieN - I love the shirt dress, great price. The color may be a little too pale for my coloring, unfortunately.
lisap - I'll look into the brands you mention, thank you!
Angie- Thanks for all the beautiful choices! Many catch my eye, especially the black one from Neiman Marcus, also the Lucky, Adrianna Papel and Tencel dress from Nordstrom.