Have you ever considered using the acrylic rod method for creating rockwork?
It looks really good Chip. Also it was nice meeting you at Bruce's tuesday good luck with everything it really looks good! I could give you a handful of sawblade out of my fuge if you like. I don't what you'll get with it I sometimes see small snails and bristle worms in it.
Cool, Ill have time tommorrow for sure to check it out. Ill PM you my number if you want to come by and get the lights, you can just call me.
Back on topic I like your open rock work. For me its a tad bit symetrical, but I still like the open-ness, flow, and shape. That piece in the middle looks BA too!