After being a winblows user for 15 years, I sold my custom built 8 core windows desktop and bought a apple refurb mac mini dual core. Windows new OS is a joke, it's like two operating systems glued together. You have the "metro" which is basically a windows mobile os glued over windows 7, in a nutshell. I am fairly computer "smart", but wondering what kinds of major differences one will expect migrating to OS X? I haven't messed around with mac in over 10 years, so school me.