names… (partial response to “curious”)

I am also confused about naming in Islam.  Is re-naming yourself when you convert to Islam the same as taking a new name when you become a priest or nun?  Also, who would someone name their child something in refrence in either a dog or being a slave.  This does not make a whole lot of sense to me.  If my name were Isabelle, and I converted to Islam would not God still see me as Isabelle.  Would God really care if I took another name or not, would he not love me just as much with the name Isabelle as much as with the name Fatima?