So I am relocating for work and need to get both of my machines out to California from TX. I will be flying back and forth from CA to TX a few times prior to the move being finished and I am considering put my Mac Pro's back in their retail box and checking them as luggage on one of my many flights back and forth. There is no cost associated with checking luggage as I have elite status with the airline. Are there any forseeable risks with check my computers as luggage as opposed to sending them via FedEX, UPS, etc? If you really think about it the shipping carriers don't handle packages any more carefully than an airline would. Any other thoughts?