I knew the day would come when I would have to upgrade my harddrive and that day is looking to be very soon. I've been doing some research about it and it seems pretty easy to change but I have some questions before I go out and buy a harddrive: 1. I know that the internal hdd needs to be a 2.5 inch SATA but before I buy it, will this one work? (Also anyone have problems with a Hitachi before?) 2. Do you recommend just buying an Apple time capsule or should I just go with the internal. I think 500 gigs is plenty but I like the fact that the Time Capsule is 1 TB and acts as an airport as well. Thanks.