What case will be good for my build?

[builder-inator]

This is my build:
CPU: AMD FX 6300
Motherboard: MSI 990FXA-GD65
Graphics Card: Sapphire AMD HD 7790 1024MB
RAM: CORSAIR XMS3 4GB
Power Supply: Corsair VS Series VS550
HDD: only one( I'm going to buy a SSD later.
CD Drive: Combo DVD and CD
OS: Win 7 64 bit

What case would be good? First I'm going to buy another 4GB RAM then either SSD or a new case (I'm not sure). So can anyone advice me in what to do first RAM, SSD or case.

I am in South Africa so finding something would be great! I currently have R571($57) for RAM. I can either buy the RAM now, save up until I get R800 for a case or save up until R1000 for the SSD.

I can't change anything on the parts list. So please just advice me on this

 

[Ironsounds]

Hello... what is your OS? 32bit or 64 bit? a 32 bit OS will not use your extra RAM.

 

[builder-inator]

Hello... what is your OS? 32bit or 64 bit? a 32 bit OS will not use your extra RAM.

Sorry! I forgot about that, it's a 64 bit. I updated the OP

 

[builder-inator]

I found the Haf 912 advanced for R800($80). It's a good price because the Haf 912 is normally around R1000+($100+)