I'm debating purchasing a new computer, and it's between a Macbook and a Macbook Pro. Due to the large volume of storage I use, I ask this question: Can you replace the hard drive yourself on a Pro without voiding the Applecare? If you can, how hard is it to get the case open? I'm OK with fiddling with the insides of a computer if the case isn't too hard to open, but I'd also prefer to keep my warranty intact. If anyone has a link to instructions on how to do this so I can see exactly what's involved, that'd be of great help. Thanks!