Cool post, I've often wondered the same thing about peoples 'names'.
Maybe this is hokey, but I usually style names to sound like either mine or some friend's. So I twist them around a bit then use them.
I am currently playing a half-elf archer - female (I am female) - I named her Dyona (my name is Diane) Swiftbow (scratched my head over what to call an archer... in retrospect it wasn't very imaginative).
Another game that I was playing a male cleric got the name I post with here, after a good friend who goes by his last name Sevigny - his personality seemed to fit the character I had in mind. Although after I did some of the cleric quests I changed my mind on that!