I've just received word that my loan commitment has been approved for a place with a garage! The garage will offer more floorspace than the arcade has ever had, which can only mean more machines in the future!

There are outlets roughly every six feet on both sides of the garage; the breaker box is on the left side, to the left of the door as you enter. Not sure of amperage, but I'll make due for now, worst case scenario. What's labelled "storage" was a workshop, and it has the necessary venting for a pellet or wood stove. You can enter the garage area from the workshop. The place is finished with woodgrain paneling. It's lit and insulated throughout. I will likely make the former workshop a lounge/toy display area. I will not be parking the car in the
garage arcade.
What do you guys use for garcade security? Cameras? Alarms? I don't want to subscribe to anything. I will definitely be getting motion-sensor lights, and the workshop windows will be boarded over on the inside.
How can I easily/cheaply make the place not internally look like a garage? Going to do the black ceiling, as always. Ways to decorate and/or hide the garage doors from the inside? I was thinking a subway "burner" graffitti job, faked with a brush.
Acid stain the floor? Paint and seal? I haven't done the water-flick test, but my guess is that the floor is sealed. I was in there the day after a heavy rain, and the slab was bone dry.
Anything else I should know?
Popular opinion: Keep the woodgrain, or paint over it?
The woodgrain. This poster is definitely staying!
