I recently bought a new Macbook Pro, and sold my black Macbook to someone. The issue is that I need to immediately have basically the same computer, I rely on it for business and school. I was pleased to learn you can do this easily with Time Machine and an external drive. The problem is that the hard drive in my new MBP is actually smaller than my macbook's HD. I want to copy the computer over perfectly and not rely on an external so I need to install a new, bigger internal. I found a Segate 500gb 7200rpm for like $100. I have never modded any apple products before but I am good with computers. Any advise would be appreciated. Is it hard/risky to do? Will that drive work? Also while I am inside the MBP I figured I might as well add more ram. Same question with this. Thank you.