Is it possible to have a 60gb ssd (agility II) in raid 1 with the 120gb (agility II)? I have already purchased the 60gb agility II, but I really want to link another SSD drive to increase my perform ance. So basically my question is would it be pointless to invest in the additional 120gb? Would the +60gb be accessible in raid? Do they cancel each other out? I can already tell that the space in my 60 is fading away...