I use a some of the cheep, formed sheet metal, Bachmann track on my workbench. Usually with the KaDee coupler height gauge. The formed sheet metal Bachmann track is available in many places for cheep (usually). I cant say that I have seen any of the plastic track, but then again I haven’t been looking for it.
TrainLi sells a line of plastic track, but that costs (gasp) money! (http://largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-surprised.gif)