I've seen that many people use in their DAW the Asus MB. And i've seen too, people asking for advice to build a new DAW, and saing that they have bought HDD WD 80 GB ATA 133. So i've check Asus site and i find that only the PC800 Delux with the Intel 875P have support for ATA 133 in "RAID mode". I would like to someone could tell me what RAID is and should i buy 2 HDD 7200 8MB ATA100 and connect in the 2 IDE, or buy 2 ATA133 and connect them in RAID (that i suppose that they are connected in the some cable) and waht's this for. In terms of audio (rec/mix) do i get more performance out of my PC? Am i wrong in something here? So, as i don´t understand what's RAID for, i was thinking (as an alternative to my laptop setup), buying a rack case with an asus MB, and get on WD 40GB 7200 8MB ATA100 in the 1st IDE for OS, and having a Maxtor 5000DV 160MB 7200 8MB ATA100 FireWire/USB 2.8 Combo for data and storage. Is this a stupid idea?