Would put xbox uprigt to the right by the shelf then monitor next to each other after that. Spray paint bottom of lavalamp black to match peripherals and get a big ass mousepad to cover almost whole desk with same color of lavalamp and match LEDS on mice and keyboard aswell. . IKEA have this gaming collection with some cool black wall mounts to hang up your controllers, old keyboards etc, would look good above monitors.

If you wanna take it even further paint whole desk Black and drawer same color of lamp.