Hello... i am planning to buy a new 15" MBP for Lightroom and Photoshop CS5 with RAW files and Logic Studio,and i am planning to use a 27" cinema display with 2560x1440 resolution as a eksternal display at home. Which configuration should i go for. Do i need the best configuration 2.2GHz with amd 6750M with AG or should i go for the 2.0GHz prosessor with amd 6490M with AG? The different is $500 here in norway. I have heard that the new LION will need som more resourses than Snow Leopard and because of that i should buy the MBP with the best displaycard. I planning to keep the MBP for at least 6 years.