Sorry guys, but PC component stuff is currently not doable for us. The amount needed to get a discount is huge and even then it's a very slim one. Hopefully some day.
Thanks for voting everyone
You're better off doing two 256GB in RAID0 than one 512GB with SATA, because of bandwidth limitations. Much more performance for about the same price; This is assuming you are using them in a desktop of course, where you have more expansion capabilities.