Dracena marginata This image is a smaller version of the very common Dracena marginata. Would do well on a table, plant stand, etc. They grow fairly slowly, so if you buy it at this size, don't expect a 6 ft high plant anytime soon.
Tall plant in Big Fish? This tall floor plant, Dracaena, is as close as you can get to having a tree in your office. Also known as a corn plant, this one will flower regularly if the conditions are right, and will do well in most offices.