I have a machine with configuration of 4 GB 1333 MHz RAM, 1TB HDD, Intel DZ68BC MB, Intel Core i7 CPU (2700k), Cooler Master HAF 922 Cabinet and a Coolermaster 550W gx-II Power supply unit (Win-8). Suggest me a best GPU which is highly recommended for this config and my software needs (PinnacleHD 15 for video editing, Photoshop CS5 and obviously for The GAMEs) i have a plan for purchase a Cooler Master TCP812 Vapor Chambers Cpu Cooler for more performance. (i did not want a extremely high end G-Card (budget matters), need a card which is best for my system config and my software need. Any suggestion would be helpful for me. thank you.