My MBP is about 6 months old and I know I'm going to have it until it dies. I want to cover it with AppleCare but I have never not bought AppleCare with a new Mac until this one. I know i can purchase it up to 1 year into owning the computer, but do i have to buy it directly from Apple? Could I just buy one of the many that are one eBay and activate it on my MacBook Pro? Anyone ever done this before?