I already own a Corsair Force 3 120GB SSD, I am looking to expand the size of my SSD drive. I know the Intel/Samsung drives are the best rated but considering I already own the force 3, would adding another as a raid 0 setup be a good idea? I've not had any problems with the drive for the 12 months I've owned it.
Or would I be better to buy two 840 drives and sell the Force 3? Would I see much benefit from this?

Or would I be better to buy two 840 drives and sell the Force 3? Would I see much benefit from this?
