I'm looking to optimize my 2008 Mac Pro by creating a bare-bones boot drive and having all my user data, etc. on other drives. I currently have 3 internal drives which I originally set up to meet my needs for music and audio production: Drive #1: system, applications, and most of the standard user content Drive #2: music and video files, and audio project files (Logic Pro files, etc.) Drive #3: virtual instrument sample files This is a fairly common setup in the audio/music production industry and my audio apps have been running very well with it. I'd like to shuffle things around to improve overall system performance. My understanding is that getting everything other than system and application files off the boot drive will speed things up, so I'm planning to move a whole mess of stuff from Drive #1 to Drive #2. So my question is, what needs to stay on the boot drive and what can go? I'm planning to move the content of my Documents and Sites folders, as well as my iPhoto library at the very least (my Music and Movies are already on Drive 2). I know I need to keep Applications and Utilities on the boot drive, what else? Probably everything at the root level of the drive except for Users, right? Is there anything else I should know about before I make this change? I'm considering buying an SSD and using that for the boot, still not sure whether or not I have the cash to spend. Thanks.