Yes, that is enough. About the only thing I would add is a separate power source for the servo as many run into problems trying to power a servo from the arduino's 5V pin. Even four series connected AA batteries would be a better way to power a servo.
But I thought that the 5v pin from the arduino should be enough to power it?
Is this a common problem?
And where/what to buy the external power source?
Edit : This won't be a problem since I have a cellphone charger that gives 5V just laying around somewere