Nver mind 'up to 100 nodes'... some of bagginsbill's loom shaders have almost 150 - and they still render at a reasonable rate. Here's a pic I did recently:

Now, it's not anything particularly special - I was just messing about with a few bits I'd recently discovered for Matmatic. But, nodewise, there's a LOT of stuff here. The kilt and shirt are both totally procedural, each with over 120 nodes. The metal buckles on the boots and belts are all procedural, but only require a few nodes to create the desired effect. And all the belt and baldric leather is also procedural, although I forgot to clock how many nodes were in each of those materials. The only map-based pieces are the axe, the hair, the skin (which I plan to change to procedural) and the boots. This was render with my own preferred settings (not any of the Poser defaults), using raytracing and IBL for the lighting. Total render time was approximately 6 minutes. Whilst that's not particularly fast, on the clunker I'm running my stuff on at the moment, that's not significantly different to simply using maps, or using less complicated node set-ups.

JonTheCelt