I posted my benmarks here: Intel SSds in Raid 0 - Long term use
My SSD RAID 0 array peaked at over 437MBps reads, average 232MBps reads. Writes were in the 50MBps range.
I can only image have much faster my system would be if I got a different drive, like Intel X25-M 80GB Gen3 upcoming
, with or without RAID 0. Although OCZ Vertex II maximum speed crushes Intels: Intel=250r, 70w | OCZ=285r, 275w.