Shift to Java / J2EE

Hi friends,

I am Ravi 2005 passout (cse) presently working on siebel as configurator.
Now I want to shift JAVA/J2EE , I know core Java and plsql very well and i have cleared SCJP. I want to know what else I must learn like EJB/JSP/Servlets/Application servers(websphere/JBOSS/WebLogic)/webservices. Is it difficult to learn these things. And any company will hire me?

[B]Question asked by visitor Ravi_M_D[/b]

There is no limit of learning new technologies. Only sky could be the limit.
And if you have the intrest nothing is difficult. As you have you have SCJP certification and if you could the above mention techlogies there is no reason why the companies wont hire you.