While looking for a new laptop to replace my old macbook, I've run into a question that I could not find the answer to. I am not solely interested in finding out which macbook has the best specs, since I can just go to apple's webpage for the answer. What I really want to know is which macbook provides the best performance per dollar? I admit, I have terrible management skills and keep several applications running at the same time. A typical session on the computer would be using the following: 1. 10+tabs on google chrome 2. facetime actively video chatting 3. excel, processing data 4. statical software (i.e. STATA & R) 5. microsoft word, office, powerpoint 6. video streaming (either online or from a local file) Don't need to ask me about my wacky behavior; all I want to know is which macbook is going to give me satisfactory performance the cheapest. The older version 13" macbook pro with its 2.5GHz i5 and 4GB is hundreds of dollars cheaper than the 15" 2.0 OR 2.3 GHz quad core i7. I obviously can upgrade harddrives and RAM but what I can't do is upgrade processors. So to pay $1,000+ for a 15" macbook pro 2.3GHz instead of the older 13" is more or less for the processor upgrade. Can someone give me some guidance/opinion on this matter and help me decide which to get?