Below are a few websites of origami artists that have inspired and amazed me. If you have not already visited those sites, I highly recommend them. If you have, I highly recommend them anyway.
Robert J. Lang http://www.langorigami.com/
Satoshi Kamiya http://www.folders.jp/ (in Japanese)
Eric Joisel http://ericjoisel.com/
Brian Chan http://web.mit.edu/chosetec/www/