Need help on what I should buy

Hello guys/girls

 

Im asking for advice because I am getting a big paycheck this week and I don't know what I should buy.

I have enough money to get either a....

 

*Full size computer case

*a Corsair GTX SSD

or 

*16gb of 1866 corsair Ram

 

What would you buy out of those choices?

You know what you need the most?

full size gaming case

 

Do you have a case already? Do you have 8gb+ of RAM already?

If you answered yes to question number 1 then get the RAM.

If you answered yes to question number 2 then get the Case.