My boss has a 17" MacBook Pro with the silver keys that is in sad shape. He just ordered a core i7 to replace it but asked me to see what repair options make sense for the old one. The optical drive is dead after he fished a small CD out of it with a paper clip, so that needs to be replaced. This item I'm not too concerned about. We can either leave it broken or I can replace this item myself. The screen often turns multiple colors with vertical lines running through it. This problem is temporarily resolved by either smacking the palm rest or slightly bending the machine. I suspect that this will require a logic board replacement. So, I'm looking for advice as to the most economical repair option for this machine as the warranty has long since expired. Should I look to the Genius bar to see how much it would cost to repair or perhaps a local authorized apple repair outfit? If I could source the parts and be confident that a logic board replacement will solve the issue, I feel confident in doing the replacement myself. Where would I look to find these parts? Thanks for any thoughts.