I have a 2009 MBP and I am going to get a new 2011 MBP. Is it possible to just swap the hard drives and everything will be just gravy? I assume they are the same hard drive.. Basically I have a lot of stuff on this computer and don't want to go through the hassle of transferring everything.. If I just through in my current hard drive to the new mac will it boot up just like my computer is now? I am changing computers because of many reasons.. the speed bump, 15" down to 13" and physical problems with my current one..