Abstract: A furniture arrangement includes an overhead support defining an elongated overhead utility channel, and one or more lamps attached to the overhead support in recesses formed by the utility channel. A dome-shaped reflector or gull-wing-shaped light-distributing member is attached to the overhead support for distributing light from the lamps downwardly into side areas around the overhead support. The light-distributing members are positioned to both distribute light from the lamp and to visually shield contents of the utility channel from people standing around (or above) the side areas. The utility channel forms light-source recesses for receiving the lamps and lamp ballasts, and wireway recesses for receiving lay-in wiring and utilities, which wiring and utilities are guided by the light-distributing members into the wireway recesses.