I have always loved this name, ever since my first encounter with the Arthurian Legends as a child. To me it sounds soft and flowing, yet strong. A bit like silk I guess :)
I have some off the cuff combos aswell:
Nimue Celine/Selena
Nimue Bithiah
Nimue Caoimhe
Nimue Ceridwen
Nimue Louisa
Nimue Samanta
Nimue Una
:0)