Hi, Quick question. Could anyone with a 5400 rpm Penryn MBP please tell me what HD you have? I have a 7200 rpm 2.4 GHz Penryn and I will be exchanging it today. I do not have the time to wait for a custom 7K MBP to ship from Shanghai again, so I will ask for a refund and simple by a stock 5K one from my local Apple Store. I want to check benchmarks at tomshardware.com. My 7200 rpm HD is Hitachi HTS722020K9SA00. For what it's worth, it's louder and vibrates more than the 5400 rpm in my old 1.33 GHz iBook G4. Many thanks in advance.