I guess the first question is, are you planning on text messaging anyone? If so how much? It sounds like you are not planning on using this feature.
You can contact 611 and have customer service remove this feature from your phone so you will not be charged. I would recommend the basic text messaging package of 200 if you think you may use this feature. I believe it is only $5.00 a month.
If you know many people with a BB you can and should use BB Messenger to text. This service is included with a data plan at no additional charge.