I just bought the Speck Clear Hard case for my MBP and it does its job so far. I was hesitant at first because of past reviewers saying that their computer was scratched because case traps dust and particles between the MBP and the case. I like the natural look of the MBP, but don't want anything to happen the outer shells. Would anyone recommend going with the InvisbileShield and the Speck Case? What's anyones experience with InvisibleShield, and applying it? I figure that the InvisibleShield would prevent scratches and the Speck Case would prevent dents and bents. Is this overkill?