SpringMVC + Hibernate + GridSphere + Apache Tomcat

I've successfully integrated GridSphere and SpringMVC. I've been using a lot of GridSphere Tag Libraries in my JSPs. Now I've to rewrite them using Spring specific tag libraries. In my opinion the GridSphere specific tag libraries are much easier to use compared to Spring tag libraries. The following link provides detailed explanation for integrating SpringMVC with GridSphere. http://docs.gridsphere.org/display/gs30/GridSphere+3.0+and+Spring+Portlet+MVC . Now I've to explore some templating Engines, and Acegi Tag libraries.