i'd recommend looking at the jndibinding-service.xml in the jboss deploy folder. i'm told you can bundle this as part of an ear to isolate things to a particular application, but haven't really tried that much.
in the slsb, i'd get all values from jndi during the setSessionContext method, and cache them. some old adage that jndi lookups are slow.
if you really want to package some xml file with your ejb, just know you can't change the configuration easily w/o repackaging and redeploying your bean.
Thanks for the response. I resolved this by using MBeans. I loaded the configuration information during boot-strap and I am able access it from SLSB.