Sipser's book is great for understanding this stuff, IMHO: http://books.google.com/books?id=eRYFAAAACAAJ&dq=sipser+theory&ei=SvqKSfnBHZb0ygS22KG6BQ http://books

Sipser's book is great for understanding this stuff, IMHO: http://books.google.com/books?id=eRYFAAAACAAJ&dq=sipser+theory&ei=SvqKSfnBHZb0ygS22KG6BQ http://books.google.com/books?id=eRYFAAAACAAJ&dq=sipser+...