I have a 13" MBP, late-2011 that is customized by me. The base model was an i7 (2.8ghz), 4GB of RAM, a 750GB hard drive, and AppleCare (expiring in December). Since then, I added RAM to the laptop, totaling 10GB. I also added a hybrid hard drive/solid state (Momentus XT) - 750GB. The laptop is in great condition - still looks relatively like new. How much would you recommend I sell it for? I got a refurb rMBP, and if I like it and decide to keep it, I'd love to sell my MBP to somehow recoup the costs. Thanks!