Hello, I've just registered, and was wondering what you think would be the best configuration for my Mac. I've never had a Mac before, but after spending several hours in my (not so) local Apple Store, Have decided upon the new 15" MacBook Pro. Money isn't too much of a problem, but I'd prefer to miss out on things I do not need. I'd be using it for a bit of gaming, such as Assassins Creed and Civilization V, and also some not-very-serious photo editing. I'd also be doing some 1080p video editing, for clips of up to 20 mins long, for YouTube. Anyway, I'm not really sure if the discrete GPU is useful for this, and am wondering if the upgrade from 2.0 to 2.3 or 2.6GHz are worth my money. Any help would be appreciated.