So I want to get a macbook air and I know that... I just don't know whether to get the 11" with 8gb of ram or 13" with 4 gb of ram. I can't get the 13" 8gb of ram due to money(Don't ask...). I will use the the laptop to do homework search web, and play games such as cod4, and minecraft.(I know that it is better to get more ram for games...) So which MBA should I get? Thanks!