I have plenty of space in my Bitfenix prodigy for a large gpu but SLI is out of the option. I am looking for a solid GPU between $125-250. I found the Radeon 270x 2 GB GDDR5 by Asus for 180 and I am looking for something similar in performance, or better if you can keep it in the budget. No preference between ATI or Nvidia, but I am running it with a 4770K