I am looking to purchase a MBP of the 15inch variety pretty soon. My intentions are to buy the lower end model w/ the HR AG screen. I am planning on also ordering this hdd for $90ish (http://www.newegg.com/Product/Produ...e=hitachi_500_notebook-_-22-145-257-_-Product) and installing it since it ends up being much cheaper and I pretty technically inclined. My question is... will this inevitably void the applecare protection? Or will they still cover stuff that goes wrong (except for the hdd of course). I don't really intend to fraud the warranty by putting the stock hdd back in if something goes wrong, I rather just save my money and run the risk of potential failure. Another question I ask is what should i expect being that I am a person who is coming from windows. What extra software will I be forced to purchase? (aside from MS Office) Please let me know of your thoughts. Thanks in advance for your time.