My PC uses Raid0 for the applications and games. As such, program loading is VERY zippy. I've heard some conflicting things regarding Raid0 on the Mac, so I was hoping some gurus could chime in and set me straight. My current config: Mac Pro (3GB ram) with the stock drive on the first bay. That drive has the OS and the apps on it. Bays 2-4 have 500GB drives in them. Bay 2 has data, but stuff I don't care about (basically). Bays 3 and 4 have been raided into a Raid 1 array - this is where I'm storing photos and music. I'd really like to fit a Raid 0 into the equation for my apps. I would imagine it would make the Pro seem much more snappy. However, I've heard bad things about Raid0-ing your boot drive. Anyone have any thoughts, ideas, tips, anything to throw out here? I'll be building an external array in the next few weeks, and that can figure into the equation as well.