I am looking at replacing my 160gb hard drive in my mid 2009 13 inch MacBook Pro. I am having a hard time researching for one that is suitable. I am looking at getting a 500gb or 750gb hard drive. I am not interested in geting an SSD as the cost is to high for me and I need more space. I have not bought a hard drive before so I do not really know what brands are the best quality. There is also an issue as some people have been saying that some drives do not work well with the 1.7 EFI update. Any help with all this would me much appreciated.