Hi, I have the uMBP 2.4Ghz, 250GB 5400-rpm, 2GB ram, 9600m gt from October 2008. It has been a little bit slow these days. Its not as responsive as it used to be. I generally have a lot of apps running. I'm looking to upgrade this machine. What components do you recommend I upgrade. This is what I always have open. Word, Excel, Mail, Safari w/ 4ish tabs. Sometimes iTunes. Sometimes MATLAB. Here is a pic of iStat: Thanks!!