Help with creating ToC's

Hi folks

I am wanting to add a Terms and Conditions for using the email side of things and would like your opinions please?
I have this so far, is it enough, too much or not enough?

Terms and Conditions: Desborough Weather emails are to be used for personal use only and should not be used for the protection of life and/or property, we will not be held responsible for any damage to property or injury to person/s through the use of our data, this is just a hobby and should be treated as such, you are agreeing to this when you click Submit.

or see them here http://www.northantsweather.com/wx30.html