Thanks for the info. I ended up going with the Samsung 840 Pro's and the performance is pretty good. The only thing I forgot to double-check is whether they have any sort of "host power loss protection". When I was doing research one of the items I checked off on the Vertex 4's is that they have a supercap. I've been having trouble finding whether this is true for the 840 Pro's. I was talking to the publisher of Napp-It the other day and he mentioned he doesn't think they do. Can anyone confirm this?