Q: how to get huge arms?

A: To build any muscle the recipe is simple: eat healthy protein-rich diet with enough calories to slowly gain weight + do heavy weight training. Even if you only care about having big arms I would recommend that you still do whole-body weight training -- it'll contribute to arms more, will keep you in good overall shape, and help keep your fat gains low. Read the articles I referred to in http://www.mikesfitness.com/content/how-to-get-ripped to learn the details of how to go about eating and working out right.