First off I did a search in this forum and found nothing for this topic. Is there a checklist of things I should look for and test when looking at a used 15" UMBP? It was new in November (so it is probably Rev A). The guy is selling it because he bought a macbook air and he never uses this one. If I get it I will probably purchase apple care for it. I have the serial number for it and I verified that it had not been registered with apple yet but it is a valid s/n. Any tips are appreciated!