Information maker computer

Name change in Kansas City, MO? - missouri state name change

OK, I've cost wondered what it would add my name has changed in the U.S. state of Missouri (Kansas City) when I'm 18?

Do not get me wrong is not my name, but that does not fit me.
And I think it is very important to a name that I think that I represent have.
Of course, any support of my parents is this, I have to wait until I'm 18 years old (I'm 16 today, 17 December 10, 2009)

And I just want to make sure that they know the laws and know how much money should I pay for. All channels and others. (^_^) V

Thank you for your help, everyone!