deployment environment

[struts]

Hi,
I have an intranet application created locally struts framework, tomcat/with a sybase 
database. I want to distribute to the intranet sites of other users. So basically I 
need to install tomcat, JDK, .war and the database engine. So my question... What is 
the best way to install this all at other places ? Install everything seperately ? Or 
using a Wise, or installshield program ?  And what if there is allready a JDK 
installed ? or somebody has another idea... ? 
Thanks