Hello, Forgive me if I have done this wrong as this is my first post. Since the update of the New Mac Book Pro 15" I have decided it is time to upgrade from my early 2011 model. I will be using the Mac book for things such as Video and Audio editing, Word Processing and the normal web browsing. I will be getting a Student Discount on this product I have £1400 saved up for this purchase but is it really worth me paying the £68 for the 2.5GHz processor? or should I just stick with the 2.2GHz processor? This would really help me if you could explain the difference and the benefits of having the larger processor.