[rules-users] Integrating DROOLS in J2EE...

Hi everybody! Does anybody know where I can find good tutorials concerning DROOLS 4.0.3\J2EE integration? I will use an Oracle DB and JBOSS Application Server (4.0.5). Any help will be great! I hope I will get used to DROOLS as soon as possible so that I will be able to help someone in this ML and not only making questions on it. Thank You anyway. Cheers! Massi