the "cogs" are only necessary if you're using smd leds.
In my project I'm using an octagon of led bargraphs
It should look similar to this mock up I made. (http://post.monome.org/?PostBackAction=Download&AttachmentID=4479
unless anyone has seen an eight-segmented led bargraph then I will use ten-segmented one s and just not use the first and last leds on each unit.
would this do for what I need?http://www.sparkfun.com/products/10136