We are currently in the midst of looking at getting our first Mac laptop. Always had Windows garbage before and am tired of throwing money down the toilet for junk every couple of years. My question is this: what am I looking for when it comes to getting a MacBook Pro with Retina as far as memory, speed, etc. We would be using the machine for the following: -surfing the internet, Facebook, Youtube -using MS Office, specifically Word and Excel for documents and spreadsheets -storing our music, currently music library is approx. 20 gig in size We are not needing anything for graphics, photography, etc. When I look at the power, memory, etc I am kinda lost.