I would call myself fairly familiar with mac os X and I feel kind of silly asking a question like this, but it hasn't become a problem until now. I am running OS X 10.5.8 and have a few questions about using an external hd. I realize i'm going to have to format it, by the way. Anyways, my macbook's HD literally has only 2.5 gb left on it and was wondering what the proper way to move pictures and music to the external HD is so I can still seamlessly pull them up in iphoto and itunes (if possible) or what other options I have as far as freeing up some space.