I'm using a 2006 MacBook Pro C2D. It has a 17 inch monitor which in my opinion is amazing. Given I have a PowerBook G4, a 2009 MacBook, and a 2009 iMac, this is actually my first and only MacBook Pro. I tried TRMJIJ's upgrade to Yosemite (Mainly cause I had success with it back when I had an 08...