Hi, i was wondering how on earth i could go about changing the string action on my acoustic. It is seriously bugging me ever since i tried guitars out at the Guitar Center and i noticed that it didnt take too much of an effort ot press down the strings. Im still pretty new and the guy told me that it was either the strings or the action was too high. how do i change the action on the strings? Can i do it or does it have to be taken to a professional? also what kind of strings do i get, i have no idea about string gauges and such.

Thanks a lot.