I just opened by brand new 12' iBook, and i am having a wonderful time playing with this baby. one concern of mine is regarding the stock 40GB hd. when i open up Mac HD (btw this is my first mac) it says i only have 24GB of free memory. it seems that all the preloaded data is eating up a bunch of space. if i had known that nearly half my hd would be used up out of the box, i prolly would have ordered a 60gb hd. is there something im not seeing? or does os x really take up 16GBs?