Background: I have about two months left with my Macbook before I need to return it. It's a white Macbook 2.4 GHz Core 2 Duo, Nvidia 320M graphics, and I had it upgraded to 8GB DDR3 memory and a 500GB 7200rpm hard drive. I use it for teaching, IT work, and personal use (iTunes, video - YouTube, CrunchyRoll, Hulu, Funimation, etc..) displayed onto a 42" TV. Right now, I been without it for nearly a week now. I been getting gray screens asking for a reboot. Does not matter what hard drive I put in there, or ram I swap into it. It will do this running the Apple TechTools disk, attempting to run new installs of Lion or Snow Leopard on blank hard drives, etc.. Apple Store made me wait 5 days to drop it off to them, and they want 4 days to look into it. I am getting antsy being stuck on a 4 year old 10" Atom netbook. The tiny keyboard is pissing me off, as well as the slow performance (even with this upgraded with 2GB ram and a 7200rpm hard drive). It's nearly impossible to get any work done on here. Half of me is tempted to jump at a refurbished 13" Macbook Air (Core i7, 256GB, 4GB ram). Questions: Is there still the issue with Apple using two SSD modules in the MBA (one being significantly slower than the other)? Is 4GB of RAM going to be painful having been using 8GB since 2010? Will I notice issues with HD video being output to a 42" LCD in 1080p? The White Macbook does fairly well with its 320M graphics. I am hesitant of the Intel Graphics. Is there any chance of a light refresh coming out for the Macbook Air in the near future? Will the Core i7 Macbook Air feel a lot faster than what I am currently using?