Im looking at purchasing a Mac for the first time can anyone help out? Im a frequent travellor therefore ive choosen the MacAir due to light weight and portable, im undecided weather the 11inch (1.6GHz i5, 4GB, 128gb,) or 13inch (1.7GHz i5, 4GB, 128gb) will be best suited for my needs. As i will be travelling through Africa I will be mostly using the Air for photo editing and basic internet usuage. How much extra power does the 13" have over the 11"? Is there much difference between the 2 MacAirs? The main differenece i can see is the the 13inch has the 1.7GHz i5 processor instead of the 1.6HGz i5 processor - Is that a huge differenece in speed? The other difference is battery life - do both MacAir last for the whole advertise time of 5/7hrs or does the battery start dying early? Are there any other differences apart from size that im unaware of?