MacBook Air 13": upgrade ram or processor?
I am looking at getting a 13" MacBook Air to use at university, I am able to upgrade either the RAM from 4GB to 8GB or the processor from a 1.3GHz i5 to a 1.7GHz i7. It will only be used for basic tasks such as word processing, Internet browsing etc. with the occasional bit of heavy use, any help as to which to upgrade would be great!
Lewis
MacBook Air, OS X Mountain Lion (10.8.4)