Next house we make I want a closet with an AC-duct and HDMI/USB/audio cables going from closet to where I'd wall-mount the screen -- hide PC in closet, wall-mount a nice big screen, wireless keyboard/mouse = super clean set up
Funny thing is, it'd cost all of $20-$50 if you were making a new house -- just need the foresight. So jealous of my friends that were smart enough to run Cat5 to/from all the TV locations in their house -- who needs WiFi?