I've been itching to replace my 7 year old laptop which has a Core 2 Duo P8400 at 2.26 GHz and 3 GB DDR2 RAM. I've had a PC for 17 years and this will be my first move to Mac. I need a laptop that will process RAW images from my Canon DSLR and convert them to DNG. I also intend to use Photoshop and Lightroom to retouch photos. My choice is between the new retina Macbook or 13" Macbook Pro. The Macbook is gorgeous but I've read concerns about the performance. I absolutely love the design and portability but it needs to be suitable for purpose. What about the specs with the rMBP? Should I go with the 2.9GHz Core i5 or is it worth paying extra for the 3.1GHz Core i7? How about 8 GB RAM or 16 GB RAM? I want the laptop to last me many years into the future. Do I need to make any other considerations before making a purchase?