Well, it's not just the surname. When we had DS it took many weeks to get even a handful of names we both liked, and we both thought any future girl would be so much easier. Now I am expecting a girl and it's still hard!
Surname is a three syllable word something like 'Defender', which makes lots of girls' names sound ridiculous. We have a Joseph already so any Mary-type names are out. I love Rosa and DH likes Rose, but I think both are too matchy in sound with Joseph. Anyway, the agreed shortlist is currently:
Claudia (top choice atm)
Miranda (both like)
Bethany (Dh loves, I don't)
Eva (both love but too popular for me really)
Ramona (unsure)
Saskia (unsure)
Names I love but he vetoed include Elsa, Cara, Cordelia, Thea, Rosalind.
Your thoughts and suggestions are welcome!