I have a few Auriou left handed rasps and love them. See the following post http://www.sawmillcreek.org/showthread.php?t=99208 concerning a supplier of rasps similar to Auriou.
These new rasps are un-handed whereas the Auriou rasps that are available from France are available in right or left handed versions.
Opinions & Thoughts?
Thx Bill