I'm looking to get the 21.5-inch: 2.9GHz and then upgrade the ram to 16gb or get the 3.1GHz quad-core Intel Core i7 processor. I do a lot of work on Final Cut X as well as on Photoshop. Which one would help me with things running smoothly, help with exporting of videos etc and just overall performance? I'm going to upgrade to the 256gb Flash Storage. Cheers.