I recently purchased a mac pro and am breaking down my old Windows Xp replacement that this is replacing. I kept the nicest of the two DVD Rewritable drives I had in it. I want to put this as a second drive in the Mac Pro. My question, I got drive replacement information off of Apple's web site but this is an addition, not a replacement. This information should still help me a lot but most of all, how do I set the connector in the back? Do I put it to slave/primary, or cable select? Is there anything else I have to do such as when I boot up the Mac Pro or will it simply just recognize it?