I'm currently using a 2.4 Intel Core 2 Duo MB (the one prior to the redesigned MB's with 2GB of DDR2 RAM) and am looking to really max it out for performance. I primarily am using this machine for audio production using ProTools and Ableton Live. First, I can stick DDR3 memory in this thing, right? Would I see any noticeable benefits using 4gb of DDR3 over 4gb of DDR2? Secondly, I want to stick a larger HD in here that is 7200rpm. I thinking about getting this. Can anyone think of any disadvantages or pitfalls about using this drive? The only thing I've heard is that some users complain about minor vibrations. Also, will I see any marked improvement if I partition the drive up? For example, I'm thinking about keeping my iTunes (about 100gb) on a separate partition in order to improve performance. Lastly, should I install some sort of hard drive utility like TechTool Pro or Drive Genius to keep things clean and running smooth? Do these apps really make that much of a difference in terms of stability and performance? Any help would be greatly appreciated. Thanks!