I plan to replace the HDD in my early-2008 MBP soon. I will then do a clean install of Snow Leopard on the new HDD. (From what I understand, I wouldn't need Leopard pre-installed on the HDD. Correct?) So once the new HDD is placed inside the MBP and everything put back together: how can I then check the HDD for possible errors/malfunction right off the bat and format it (before installing anything on it)? Is there anything else I should pay attention to before running the new HDD? Thanks!