Rick, I use some LED's in my orchid greenhouse, but because typical LED's are low wattage, these light-strips have to be within 12-18" of my plants to be effective. I know higher wattage LED's are available, though they really get up in price. Mixing in some staghorn ferns, bromeliads, and even some mounted orchids might work for you. Variable plant varieties would make the "wall" more appealing and even fun to build. You need to increase the light though. Fluorescents, again like LED's, would be poor light sources for growing plants in your office, (mostly) due to the distance of the fixtures from the plants. You simply don't have the light spectrum or lumens necessary for good plant maintenance.
