I built my newest computer about 3-4 months ago. Its a 2.8GHz Canterwood w/800 FSB, HT, ect. And I paired it with the D875PBZ motherboard. At the time I wasn't interested in overclocking and I just wanted a pretty fast, stable system. Currently I'm not using any SATA drives, just Western Digital SE drives w/ 8mb cache. I have an 160GB and a 80GB version. My question is, Should I install the Intel Application Accelerator? The version my motherboard comes with seems geared only towards SATA RAID setups. Will I get any performance increase if I use it? Would I get any performance increase if I bought another 80GB SE to run in raid with the other one? Can I install an older version of IAA (Non-Raid version)? Any help would be greatful as I just switched from AMD(I built this new system before any of their 64 bit chips were out) Thanks again in advance.