I'm looking into buying a REV A at the moment. MacMall has it for $1199 after rebate. I have a few questions: 1. Are these refurbs? It doesn't say anything on their website so I was thinking it was new. 2. Does Apple Honor the warranty on these? 3. How slow is photoshop on the Rev A? 4. Besides the core shut down problems, what are other known issues with these? I was about to buy the Alu MB but the screen is not ideal for photo editing. Thanks in Advance.