With some trepidation I am gonna attempt to replace a bum CD drive. I picked up an Apple one on eBay. So far I have been warned about the fragility of the connector to the mother board. Any other caveats? I know I should let a pro do it but it is too expensive for me at this time. If enough users here warm me away from doing it myself, I will continue to use an external CD drive I have and have a pro do it when $$$$ loosens up... TIA