So I've upgrade to the current generation white Macbook. I've got my old 1+ yr, Macbook, 2.4Ghz. I took the 4Gb I had in the old one and put it in the new Macbook. The question I have is, should I return the 4Gb and upgrade the hard drive for the next person, since I'm technically inclined and able, also will I get more $ for doing so? Should I include my Isis Cover too? (it has the old mapping on the function keys so I will get the new one) If I should update the hard drive, which one should I upgrade to? Oh, and yes I'm going to open it up for shipping to UK as was recommended before in another thread. Thanks much.