i would wait till AMD releases their new cards. because for that price you will be able to get a newer card.
for your motherboard i would recommend going with a M-ATX board from ASUS's non-ROG line of boards. this will give you all most all the stuff from a ROG but with more professional stuff. look for Something with better Audio for video editing i suppose Audio is some what important. this way you get more expansion slots and for a better price.
personally i dont like that case. but its your taste of things. but for that price you can do way better stuff.
to be honest im very confused about the samsungs naming and use of different flash chips. so i would look it to what is the best one for video editing. different types of data performs dramatically differently according to the Flash chips and Controller.
please look in to that. for a video editing machine i would recommend getting 2 250GB SSDs and do a Raid 0 array. you will get the same amount of space and more speed than a single SSD and for less price.(please Do regular backups to your HDD so you dont loos any of you Data)
that fan is not a necessity at all. if you drop that you will save a lot of money and have a less noise.