My son is starting an engineering masters program in August and needs to replace his 5 yr old MacBook. Budget is up to 2K for a computer that will take him through the next 5 years. Student prices are shown. Options: 15-inch MBP, 2.6 GHz quad i7, 750GB HD, $1,999 15-inch MBP, 2.3 GHz quad i7, Retina, 256GB SSD, $1,999 13-inch MBP, 2.9 GHz dual i7, 750GB HD, $1,399 all with 8GB RAM Considerations-- SSD is much faster and more durable. Retina MBP is nearly impossible to repair down the road. He may need more than 256GB to run mac and windows programs. Advise appreciated.