I just received the Spring/Summere 2010 edition of the ALA Publishing catalog. There are two new books of interest for catalogers. Sadly, CMRLS won't be purchasing them, but perhaps the Massachusetts Library System (into which CMRLS will be subsumed) will.
Introducing RDA: A Guide to the Basics by Chris Oliver.
And Cataloging Correctly for Kids: An Introduction to the Tools (5th edition) edited by Sheila Intner, Joanna Fountain and Jean Weihs.