This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
You can use the Java command line parameters to allocate more memory by setting the JAVA_OPTS parameter in catalina.bat - see the Java tooldocs for the format. I think we recently had an extended discussion of this here, so you might browse the last couple of weeks of posts. Bill