I've got a 15" 2.16 GHz Intel Core 2 Duo Macbook Pro, about 1.5 years old. I'm planning to upgrade the hard drive by following the online guides but I'm not sure what the specs are for hard drives that the Macbook can support. Is there a storage size limit (can it support 320gb)? Can it support 3.0Gb/s? Can it handle a 16mb cache? Will any 2.5in drive fit inside or only certain ones? Does anyone know where these specs are located? I've searched around but can't find them... if they even exist.