Hi All, I am looking to potentially purchase a Macbook pro. Once upon a time I had a 13" MBP 2009 and found it limiting with the screen res. I am currently using my girlfriend's 2010 13" and coming form a 15" Dell with a 1920x1200 res screen this 13" feels very cosy. I have been looking on a lot of the auction sites and local forums to see what people are selling. There seems to be a lot of 15" laptops with graphic faults, or 15" laptops from 2012 ish who have had graphic card replacements. Is this a common theme with the 15"? Ideally i would love the 13" version but the 15" comes with a quad core processor which would come in handy as I would have to run a VM as I use lots of Windows applications. I suppose what i'm asking is that if i were to spend £700 on a second hand 15" machine or would i just be better off and putting a few £100 more and getting a new 13" ?