This is my first PC build and I don't know much about hardware, I tried reading many posts here and in other sites but I didn't get a definitive answer to my question So, I'm on a limited budget ( around 900$ max.) and I need help choosing between sapphire HD 7770 vapor-x 1GB OC (around 145 $ in my country) http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1159&pid=1523&psn=&lid=1&leg=0 or Sapphire HD 7850 2G OC (around 220 $) http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1160&pid=1499&psn=&lid=1&leg=0 and for cpu FX 8120 (around 170$) or Intel i5 3470 (around 200$) I want to run games on the highest quality and HD movies ( I prefer best Performance/Price ratio) Any other suggestions are welcomed. P.S. what is the best mobo to go for and is a PSU 500W sufficient for this ? Thanks in advance.