I have 2 raptors in RAID 0 on an Asus A7n8x deluxe, unfortunately, the nforce2 drivers from Asus are old and do not work well with the Sil Image controler :(, I can tell u though read speeds are quite speedy.
In the past, I have had 2 40 gig 60GXPs in RAID 0 on a Abit KG&, running for a year...