Lol.
I would be careful who you ask though in a gym. You might get a punch to the face for either insulting there massive home grown muscles, Or the have roid-rage and do it anyway.
Better off doing it the old fashion way. There's a place in freo called body nutrition or something like that, its in the manning arcade.
Guys there are pretty kool and have heaps of different things you can look into. that or google =D
Hope this helps