A system to facilitate computer-based commerce includes receiving information relating to an item to be transacted via a computer-based commerce system from a first party. A master configuration file associated with each of said plurality of virtual hosts is provided. The range of motion plane forms an angle of between about 30 and 80 degrees with the backrest. The rotatable tube is connected to the tongue of the trailer so as to form the hitch having three axes of pivot. The input edge contains fixed pitch grooves to propagate the LED light in a direction that is substantially angled toward the bottom surface of the light pipe along its entire area. The second portion of the semiconductor substrate is recessed from the first top surface to form a fin of the multiple-gate transistor.