wdeitz...
I found a website that has low cost spay neuter programs in TN. I know this isn't what you are looking for, BUT you can start calling these folks and get some leads on some vets that care more about the animals than the money. I found a low cost clinic where I live by researching the spay/neuter programs on the internet. I noticed you lived in TN, so that's what I looked up. If you tell us your town we could dig deeper for you. The more people looking the better your odds.
http://operationnoblefoster.org/speu...sources.htm#tn