I was thinking about swiping out my optical drive for a 7200 rpm drive I have lying around instead, but am hesitant because I am thinking it might negatively affect the resale value of the machine. I'm weighing out my options on whether or not to just stick with my external 7200 rpm drive for recording my audio, and leaving the optical drive alone. I will be replacing my main drive which is currently a 5400 rpm drive to a 120gb SSD. I will be needing a bigger drive for samples, and storage. I am now using my 7200 rpm external drive that I used to record my audio to, for Time Machine backups instead. So it's either an optibay from ebay from nimitz for 30 bucks and an external DVD drive somewhere, or I could buy a cheap external drive for Time Machine backups and go back to using my 7200 external drive for recording my audio. Hopefully I didn't put that in too confusing of a way. Mac heads, tell me what you think.