Just my personal opinion, but I'm not sure I'd go with Samsung SSDs. They're cheap and fast but they don't quite have the same life expectancy as other drives. The OCZ Vector 150 and the Crucial M500 or M550 may be good alternatives depending on the amount of extras you need (in the latter case I'm not sure whether it even includes a mounting help for 3.5" slots). Samsung uses TLC chips which will probably live long, but certainly shorter than decent MLC chips. There always seems to be some hidden life-shortening stuff with Samsung devices so yes, I'm a bit biased against them.

Otherwise it seems alright to me.