Hi there. I am getting heavily into 3D animation and modelling, and as such have purchased a 2.8Ghz 2008 mac pro 8-core. I currently have raid-0 my two 320Gb hard disks; I know it's not very secure, but I'm just in the setting up phase right now, so that doesn't matter. My question is this; is there a MASSIVE performance increase, when upgrading from the stock 2x1Gb FBDIMM sticks, to, say 16Gb in 2Gb sticks, or 32Gb in 4Gb sticks?. What is most noticable??. Finally, what raid configuration is optimal for both speed and peace of mind?. Thanks people.