Does this mean you are against all translations of the Bible, or is it a specific concern you have with the NIV? Is it the anonymity of the translators?
Whilst I am using it less and less these days, I grew up on the NIV, and so have always felt a degree of protectiveness towards it. I have read some of the KJV-Only (KJVO) arguments, and some of the points they make regarding small problems with the NIV are true. However, on the whole, I have never had a problem with it. What is the specific problem you have with this translation?
If you are truly going to take that verse as you have presented it, and not "drink downstream", then surely you are backing yourself into a corner where the only documents you can justify reading are the original manuscripts! So be a little careful about what you say.