Here is one option. It will game fairly well and i would only recommend it if you only plan to game with this. If you plan to do photo editing or any sort of multitasking I would go with this instead:http://pcpartpicker.com/uk/p/pPwL
It will still game very well and will be more useable when it comes to multitasking or photo/ video editing.
As you can see my current rig is very similar to the second build I have listed and I love it. It does all I need it to.