I'm adding to the confusion, but I really think the more information, the better.
I read on a Golden Retriever bulletin board recently about Flint River Ranch food. Most of the owners there swear by that food. You can read about it at: www.f-r-r.com

A couple of other pet nutrition sites are: www.api4animals.org/doc.asp?ID=79

and
www.naturapet.com

Anybody know about the essential fatty acids I keep hearing about that are supposed to help with skin and joints? Where do you get them and how do you know what and how much to give?