I currently have a Macbook from 2008 and I'm thinking about buying a new Macbook PRO 13". First of all, is it smart to buy one now? I think a new upgrade is coming in the first half of 2011. Does anyone knows when and what the upgrade will be, i.e. should I wait? The second question is, can I switch my current hard drive with the new one? I replaced the standard hard disk from my Mac, because it crashed, to a Seagate (ST9500420ASG 500GB 7200rpm). I think it shouldn't be a problem, but I would like to be sure.