Arduino Midi-Controller

Hello Everyone
I am starting a project and I have never used Arduino before.
I was wondering what kind of Arduino I would need to build a midi-controller and other components if you know the answer to that as well.
I know for sure that I'll be having buttons and potentiometers.
Thanks for the help
John

Start with an Arduino Uno http://arduino.cc/en/Main/arduinoBoardUno
And use this tutorial http://arduino.cc/en/Tutorial/Midi