There is a site hosted by animanga that has a 
very interesting section on the production 
process of anime. It's not necessarily a "how to" 
description, but still very informative. It's 
called Brian's Animation Gallery and the section 
*I think* is called Anime Production. Here's the 
URL. (also above)

http://www.kimonocels.com/ 

He may also be a good resource for questions. 
Hope this helps ^_^

-Megan