Hi Everyone- So I am standing on the verge of ordering an 11" Air to help with my schooling. I am currently working off of an iMac from about 5 years ago(2 GHz CoreDuo, 2GB RAM). We are going to be ordering one of the new 27" iMacs once they are available in December or January, probably go with the 1TB Fusion. So I am wondering if I really need anything more than the 1.7/4/128 Air for my school stuff. I am a philosophy major with minors in languages so I mostly write papers. I may end up adding another major, still undecided on that. Considering what I have now and what we will have in the new iMac does it make sense for me to spend the extra money on the 8GB RAM upgrade? Plus, if I went with 4GB I could probably go refurbished and save a few extra bucks. Opinions?