I dont think you can go smaller than a node 202 as a console size case. Maybe a Sentry or something else will be smaller, but you need to put the SFX psu somewhere, and putting it beside the mobo creates a large GPU which gives the manufacturer/consumer larger GPU compatibility. You could go much smaller if you ditch the SFX and go for separate AC-DC and DC-ATX power components, or with an external AC-DC brick seen in laptops.