What I have in my house, unopened: 2.4 Penryn blackbook. 2 GB RAM, 250 GB HD. What I'm eyeing: 2.2 previous model blackbook. 2 GB RAM, 160 GB HD. New. I could return my current blackbook and purchase the previous model blackbook. In the end, the savings would be $200. My current external that holds all my media totals 70 GB. So the 160 GB from the previous model blackbook should be enough to keep me happy. Would you make the return or keep the current model? $200 for 90 GB more? Worth the newer processor?