Thanks Jigalypuff. I was starting to think I was invisible.

As for tuts, I didn't really find much online -outside the random offset tut, but I did read a couple of books. And I’ve made a lot of textures. The more you make the better you get.

3D Game Textures - Luke Adhearn
The Dark Side of Game Texturing - David Franson

The books don't really show how to make anything spectacular, but they do give a lot of really great ideas.

I have found that understanding how to use and mix layers in Photoshop is essential. Using inner and outer glow for gradients in Photoshop is a good way to make height maps.

If my 3d business is ever stable enough to allow for some free time, I'll write some tuts.