Hi all, I'm thinking of buying a 13" MBA. But I have one concern: Is 4GB of RAM enough to run windows/linux (One at a time) side by side with mac? The tasks I will be doing aren't exactly too memory intensive (Programming mostly), but still do you think 4GB is enough for the mac to maintain it's speed and performance? The budget is tight as it is and I don't think I can go up to 8GB without dropping down the screen size. Also, which would ease up on the memory more: Windows 7 or Windows 8? Thanks all.