I need help deciding between getting a macbook pro or macbook air 13", regardless of which one i get i will be getting the basic version of each 13". I mainly use my laptop for: School work: powerpoint word excel internet browsing itunes 10-15gb worth of music youtube and thats pretty much it, i don't really need optical i use it here and there but feel i can survive fine without it But reason I'm debating is because if i get the pro i was going to upgrade hard drive to ssd and replace optical with hard drive. and air will only give me 128gb which is SSD already, but idk if that will be enough storage it maybe not sure tho. so please help me !!!