thinking of calling DD2 Anastasia (old family name), probably with Anna as nn. DP and I really like it - it's classic, but very feminine, and a traditional (although not much used) name where we live.
Alternative is Dara (or Daire in the Irish spelling) - it can be used for a boy or a girl, and means either 'oak', 'fertile' of 'second-born' depending on which source you consult. I like this one too.