Music Editing PC/Gaming PC

Hi I was just wondering if there are ang suggestions for a pc that I plan to game on as well as do some music editing with my band.

The price range is  $900, all the part have to be from this website and finally I would like to use this case

Are you going to be recording into the pc? If so will you be relying on the onboard or do you have an external sound source (mixer etc with usb input). Reason I ask is dpc latency related.

If onboard then id be looking for an ivy/z77 setup. External source, anything goes which will make builds easier.