The King James Bible is a good translation, but it was not inspired by God. No translation is inspired, only the original writings. That is why one has to be careful and open minded when analyzing a translation. The book "Truth in Translation: Accuracy and Bias in English Translations of the New Testament" is an excellent resource for understanding this.

http://www.amazon.com/Truth-Translat...+in+tranlation

The New World Translation is an excellent translation.