Hi Czarina,
Although I don't have biting problems with my Eclectus Parrot I have found some pretty good resources on the net that I have read. There are many different theories so I use the suggested guidelines that best suit my family as well as my bird's environment.
Here is a site that sells 6 books for $79.96 which includes a book titled "How to get my parrot to love me" or in your case "your husband"
http://www.parrotsecrets.com/
You might also try visiting
http://www.landofvos.com/ which is the site I frequent and has a lot of valuable information on the Eclectus Parrot. I am told that the African Gray and the Eclectus are very similar birds when it comes to habits and behavior although I am not too educated on the Grays.
I hope this helps.