I just think naming a second child of the same gender is always harder, whether a boy or girl. Our first boy was a breeze to name, and so was our youngest (a girl). It was our middle child - the second boy - that threw us for a loop! I think it's hard because you've already used your favorite name, and don't want to feel as though you're giving your second, well. "seconds" - we wanted to love our second son's name as much as we loved our first's. Our second's name is the only name of the three that I still second-guess sometimes...