Sounds like you got some great responses from your buddies on GardenWeb.com.

As you know, I'm a big composter of horse manure/sawdust. I think horse manure is great, and the decomposed sawdust is perfect for heavy clay soils like mine, plus it's high in potassium.

Check out this article I wrote on composting animal manures:

http://faq.gardenweb.com/faq/lists/orga ... 28156.html

Happy Gardening!