I'm a teacher so put off by loads of names before I even started lol. :-D ;-)
I wanted to call my son Samuel (Sam) and we have a female family member called Samantha (Sam). They would have the same last name too. I cringed at the thought of her acting like it was 'after her'...but I was so hell bent on the name that I did it anyway.
It's been 'okay'. She has done a couple of annoying things on facebook posts linking her and my son together through name comments, "Sam junior" and "Sam senior" etc, which when feeling particularly intolerant I just want to write back NO! NO HE ISN'T LINKED TO YOU AT ALL! but, because she is a family member we don't particularly see that much off I still felt it was worth using the name I loved.