I have a MacBook (Mid 2009) and want to upgrade my hard drive to a 500GB (or maybe higher) 7200rpm drive. I have already upgraded the hard drive once, from the standard 160GB to a 320GB 5400rpm, so I already know how to do it. I just need more storage, rather than using external drives. Also, after I upgraded to the 320GB drive, the startup was much slower than when using the stock drive, so that is the reason for having a 7200rpm drive. I have seen some on ebuyer for around £60 but was just wondering if anyone had any other suggestions. Thanks.