Tech Help Case Choices

[Samurai_TwoSeven]

So I'm in the middle of buying the parts for my sister's graduation present and I realize that I have yet to choose a case for it.

I'm on a toss up between the following

Corsair Air 240

Corsair 300R

Cooler Master HAF XB Evo

Corsair 350D

Her system specs are below
http://pcpartpicker.com/p/mLPZhM