Course Information for Physics 219/Computer Science 219 Quantum Computation – Caltech course webpage, has a list of good articles to read at the bottom, and links to some good books.
Quantum computation and quantum information By Michael A. Nielsen, Isaac L. Chuang (I think I started reading this book in the school library… Now I can read it at home without carrying it back and forth.)
Institute for Quantum Information – Caltech