I just got the MacPro 8 core. The 30" Cinema Display will not arrive until Wednesday. I was under the impression that I would not have to buy any other cables if I was just using one monitor. Just to be sure, I called Apple store and got two different opinions. The first person said he was 100% sure I had to buy a mini display port to Dual link DVi adapter, $99 plus tax. So, I did as he seemed so sure of himself. I then had second thoughts and called another Apple person who told me that I do not need the dual link adapter as I'm only using one monitor. So, I asked to cancel the order; however, I was told it was too late. They did say they would e-mail me a return, rma number with label to get my money back. Federal Express. Now, I'm not sure who is right. Any thoughts? Anyone recently bought a MacPro and a 30" cinema? Thanks for any help.