of course, I am just a newbee, but why not just stick to TOMCAT in your case, because it seems that for web services JBOSS is exactly using TOMCAT
as the founder of jboss would say " you just don't get it "
the reason people are moving to jboss is because it is supported by real people, working stiffs who have a $financial$ stake in keeping the product supported.
Not some college pukes or propeller heads who might look at your problem if they feel like it.
I would have a great deal more trust in support i paid for than in the "free support" offered by the apache foundation, because you know that the guy who is getting paid NEEDS to help you.
The online admin guide gives an overview of the default and all configuration filesets. The default config is the correct place to start.