Hi! I just ordered a MacPro configuration. Since HDD in the original configuration isn't so great, i was thinking to buy 2x WD Raptor 150 Gb and connecting them in a RAID 0 field, and installing OS X and applications. Is this posibile without the 800$ RAID card? Something like a software RAID... This computer would be used in a quick printshop (Adobe CS3, Autodesk, Office Suite, Corel,....) and the important thing is quick opening of different programs, and saveing large files 2Gb+. If it's posibbile to make a software RAID would the configuration be faster then a single Raptor or Samsung's Spinpoint F1? The capacity of the primary drive is not a problem im only interested in their (his) speed, so i treat 2x 150gb and F1 750gb the same. THANKS!!