raid is super troublesome la... not everyone can make it work easily... and the performance really not much difference if not doing a lot of multitasking like 3d graphic processing.. RAID 0 some more is danger ler.. one hard disk spoilt data on another also boom! no more... I would go for a hard disk with sata2 setting lo.. i read in a few mag saying samsung spinpoint series is good wo performance not really top notch but also no.2 or 3 like that compared to fast harddisk like raptor, hitachi, maxtor diamondmax11 etc.... dono real or not.. so cheap some more.. any user of that here? hitachi deckstar also seems quite good.. the samsung one got one thing confirm.. the samsung one i think is p120.. maybe old liao.. not sure. the cache only 8mb..