Ok quick question, If me and a friend exchanged hard drives would he basically own my computer and I his? If I was to buy a new case, mobo, ram, gpu, cpu but keep my old hard drive would it basically behave like my old computer? Would my music still be there, would all my programs like itunes and windows media player for example work without problems, if I was making an indie game or a movie would I be able to pick up where I left off?