Your MB supports it. But remember this is a software raid so it will rob cpu power depending on what your are doing. Personally a single rapster will do. Then if you need more data space add a RAID 1. But everyone has opion on this.
Gaming mostly, I have two 150 raptor x's and a Seagate barracuda 750gb. New Egg has a great sale on the standard 150 raptors, so I got the idea of running the x's and the standard raptors in RAID 0+1. Also is it possible to add the +1 to an already existing RAID 0 array? Thanks again