I really want a gaming pc but I don't know what is a good price range for a good gaming pc. what is a good price range ?
It all depends on your definition of "good". You could build a pc for 600$ that would be "good" for 1080p, You could spend 1000$ and be "good" at 1440p or triple 1080p.
It all depends on how you like to game
Forget good, if you have 800 USD you can get a great system! :D Like this: http://pcpartpicker.com/p/rCgQMpand if you have an old hard drive or RAM you can use, boom even cheaper! :D Hell even forget great this is an amazing system!