rh, I have seen one guy actually build TWO bars, the standard straight bar and the straight kegger bar which he used as the bar back.
Taking this further, you could do the same thing and ADD the top section of the bar back plan to the kegger bar plan.
Now that would be COOL!
Below is a link to the photo of the two bars as found in the builders gallery.
http://www.barplans.info/gallery/displayimage.php?album=random&cat=14290&pos=-247