I'm a college student and recently bought a MacBook Pro 13, but now am returning it and getting an Air. I just need some help choosing between three different models. I mainly use my laptop for internet browsing, school work, watching videos, music streaming, Skype, and light gaming. I will also be installing Windows 7, so I feel like the extra 2GB of RAM is needed, am I right? (tell me if I'm not) Option 1 - NEW, 1.86GHz C2D, 4GB RAM, 128GB SSD ($1,420 after tax) Option 2 - Refurb, 1.86GHz C2D, 2GB RAM, 256GB SSD ($1,430 after tax) Option 3 - Refurb, 2.13GHz C2D, 4GB RAM, 256GB SSD (1,620 after tax) Any thoughts and/or opinions are welcomed. Thanks in advance.