Uncle Corbett's suggestion is to use of the following:

http://rumandmonkey.com/widgets/toys/namegen/
http://www.ideazoo.com/things/hiphop.cfm

As long as the name means something to you both then it's okay...but if you choose the name just because it sounds nice and it goes with Ingoldsby then that's a no no.

Go ahead with the name you love regardless if your friends already have a child with the same name. You only see them a couple times a year and there is a big age gap. It's not like they will be in the same classroom or even the same neighborhood. I say go for it! Your friends may end up moving to New York for all you know.