Does that sound like a solid choice for 4x WD Raptors in RAID 0 over usb3?
He just wants max speed but too cheap to buy 4x 1TB SSD's
You'll have to forgive me because i'm not familiar with the brand, BUT it seems to have all the functionality that you would need. I believe with USB3.0 you're capable of 400MB/s, so speed would be limited by the Hard drives and not the unit itself, which is a good thing. Maybe someone else is more familiar with this brand.