Hi, I am a graduate student looking to purchase a new computer. I already own a MBP 2012 edition, but I find that when carrying it with all my papers and things, it can get sort of heavy. I am looking at purchasing a MBA for a lighter alternative to carry around. I am wondering if it will be powerful enough for my use. I use statistical software including SPSS, Stata, and R very often for my research. I am a behavioral researcher and I generally don't have more than about 500-600 cases and about 30 variables. This is my primary concern for power. Other than that I use basic things like MS Word, Excel, and PPT, Outlook and internet. I do like to run many programs at once especially when do research on a new topic or analyzing data. Will a MBA be powerful enough for this use? Also what specs would be the minimum to make the machine powerful enough? As I mentioned I am a graduate student and therefore on a graduate student salary, so I would like to stay as inexpensive as possible. Thanks!