It sounds like you can probably get by with the i5. However, if I were you since you say you do video interviews, the i7 2.4 has the NVidia GeForce graphics. If you are doing video, I would go with that along with the Quad Core specs. It's a machine that will las you a long time. I also like the fact that it is 15 inch. My wife has an older white Macbook that was 13 inches and my sister has a 13 inch Air and they just seem small compared to my older Macbook Pro 15 inch screen.