I have a white macbook and am looking at upgrading the hard drive from the standard 120gb to a new 320gb drive from western digital. Would this hard drive work properly in the macbook and be of good quality? http://www.newegg.com/Product/Product.aspx?Item=N82E16822136197 Another question I have is that I bought this macbook with tiger pre-installed and a leopard drop-in disc. When I put in the new hard drive do I need to reinstall tiger from the original discs and then upgrade to leopard from the drop-in disc and run software update? Are all the apps that came pre-installed going to be installed again with the repair discs? Sorry for so many questions and thanks for the help.