I wanted to inform you of a few new tuts for Photoshop and Hexagon.
http://www.geekatplay.com/hexagontutorials/weekly.php
http://www.geekatplay.com/gary.php

I also found a much easier and effective way to do sewer pipes so I redid that tutorial.  Definately a must see.

http://www.geekatplay.com/flvplayer/player.php?pathinfo=hexpipes