Buying a Mac laptop for my wife. It will be used as our home PC and she will use it for photo editing. We prefer portable as we never look at the thing in the same place, just where convenient. Mainly running iLife and iWorks suites, email, finances, browsing etc. My question is will she/we be satisfied with this computer with respect to power? Next question is: Is there enough value in buying an older model like 2010 vs new. Thanks in advance the help.