I think somebody beat me to it, but in the interest of being thorough

http://www.renderosity.com/mod/gallery/artchart.php

 

Outlaw, if you're still in the market for leather shaders, I snagged one from Daz a month or so ago called Leatherize. I haven't used it as much as I would have thought, as a freebie called Cloth FX has an excellent leather shader thats easy to adjust to your liking. The Leatherize does have a good displacement effect and selection of patterns you can put on just about anything. 

Add: If you want bump maps, that's easy  If you've got GIMP I can walk you through it. There's also a plug-in available for making normal maps, which is super handy if you've already created a bump.

Not sure why the highlighter won't disengage. Somebody kick it for me

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