I think xlr8.com had a study on this comparing 400, 800, and internal IDE. Not sure if SATA was included. But I remember the internals always being faster. Even when the 800s with in a RAID environment. The study was about 3-4 months ago. Should be there somewhere. Carter Berkeley not sure what to call myself, except underemployed > Wow! That's a pretty good price. Anyone know how a 250GB one hooked > up via FireWire 800 compare to an internal SATA drive on my G5 2x2? > > Zane