Yeah, you can do that, I just meant that you can't play games like Forza Motorsport 4 or 5 since they have not been released on the PC.
Anyway, you can either connect the controllers via USB or wirelessly. For a wireless XBOX controller, you need a specific wireless receiver meant for XBOX controllers (should be included in the package if the controller is marketed as an XBOX controller for Windows). For a PS3 controller, you'll need an USB wire or a bluetooth receiver.
As for the build, looks pretty good to me, but don't get a k-series CPU for a motherboard that can't be used for overclocking; The i5-3570 would make more sense than the i5-3570k.
Thank you Eduello for your answer.
Just so I get these basic information straight, I can play any
PC games via XBOX & PS controller?
Regarding the build, I got the i5-3570K version very cheaply due to a friend of mine upgrading. ¨