I've got a three year old MBP and would like to upgrade the HD. I've seen instructions on the Internet, and see this is not really a user replaceable item....at least by this user I'm handing it down to daughter and I just don't want to mess this up. At one time I thought I heard the Apple Genius Bar would supervise an install if you brought your own tools. Is that true? I assume sending shipping it to Apple would cost an arm and a leg, plus they'd won't to sell me the HD replacement. There really aren't any independent Apple service centers where I live.