I'm in college and my Dell is shot. I'm planning on buying a laptop this weekend to take back with me. All I really do on the computer is surf the web, listen to Pandora, and write essays. I've narrowed my search to three options: 13 inch MBA ($1024.99 from Best Buy sale plus $20 cash back from my credit card company for spending over $200 at Best Buy, ), 13 inch cMBP (1034.99 from Best Buy sale plus $20 cash back), or 13 inch retina (1599.99 from Apple with student discount). I want this computer to last me 3-4 years. I've been leaning towards the Retina, but after reading so much on here I'm wavering.