Hi Kim,
rearing is a very addictive hobby, time consuming and very rewarding. The best site is: http://www3.islandtelecom.com/~oehlkew/ this is his non-member site with some info and if you get serious I would suggest becoming a member for his nominal one-time fee.
The most comprehensive book is:
The Wild Silk Moths of North America: A Natural History of the Saturniidae of the United States and Canada by Tuskes, Tuttle and Collins (you can find it on Amazon and elsewhere)
I am in the northeast and we have the same native moths: luna, polyphemus, cecropia (can be prone to pathogens some years, but have very large double cocoons with lots of silk!), promethea being the most commonly raised.
I am not a spinner, but there is a great site (see link below) of a woman who uses "peace" silk which does involve killing the pupae in the cocoon as the industry for silk does. I do not know if she rears any moths other than the Bombyx mori (the one used in industry) but I am sure she can be of help.
Another site for spinners and rearing is: http://groups.yahoo.com/group/CatHerders/
Hope this info helps and I'll be happy to help you when it comes to rearing our native moths 
lele
Aurora Silk