Which Graphic card shall I buy ?


Budget for now would be between 150€ - 200€
I got that pretty small Case of AX 3960 (Small Form Factor PC)
Random video about the case: http://www.youtube.com/watch?v=EktqMHD_vDQ
 
I wouldn't like to. it depends if it is cheaper with buying just a new case or if it is cheaper getting a graphic card that fits.