Hi Everyone, I am getting the macbook pro 15inch 2.66 (i7) I want to customize it to have 8GB Ram as well as either the 7200rpm drive upgrade OR SSD (still deciding). Questions: Do you recommend 3rd party products when customizing? Is it difficult to upgrade / install these things items? (RAM / HD) I am pretty good at following installation instructions etc but have never done it with a computer before. Can you recommend third party vendors? Do you recommend OWC? Does installing 3rd party void warranty? Thanks for your advice.