Actually, the big selling point of WebLogic Workshop is that you don't need to understand the complexities of things like
EJB and Web Services to effectively build J2EE Applications using WebLogic Workshop. The reality is that while a tool such as WebLogic Workshop can hide that complexity... when you start getting beyond the most trivial examples you need to understand the underlying techonology.
BTW, don't get rid of your other IDE yet... Workshop still has a long way too go before it is a complete replacement.