When I started out in CRA, my bank sent me to the 2011 CRA and Fair Lending Colloquium sponsored by ABA and Wolters Kluwer. The bank enrolled me in a pre-session on CRA Basics. Between the Basics session and the contacts I made, I would say it was a good value for the money.
Beyond that, read, read, read the CRA reg and the FAQs. Search the web for CRA info. The FRB of San Francisco is a good source of materials. BOL is an excellent source too. Hopefully you have some compliance background. Without that I would have been totally lost. Good Luck!