i was looking to buy the 13" Macbook Air with Definite 8GB Ram and 128gb ssd (will get external if need more space) but my last question is, what about i5 or i7? I WANT TO KEEP THIS MACBOOK AIR FOR ABOUT 4+ YEARS my main needs are, writing papers, web searching, ton of photo editing, emailing, and more photo editing! will the i7 be needed or should i just buy the i5? thanks!!!