Hello. I'm considering trading my black 2GHZ Core Duo Macbook with 1GB RAM, 80GB HD and $250, for a 2GHZ Core Duo Macbook Pro, 128MB video, 2GB RAM, 80GB HD. A few questions: 1) Is that a pretty good deal, do you think? 2) What should I look for in testing the Macbook Pro when it arrives? Is there an easy battery of tests that I could do or should I simply use it? Are there any specific defects I should be on the lookout for? Thanks as always for your help.