Adding Spring mvc to an existing project

Hi everyone,
i'm developing a dynamic web project that generates web services with axis2 .I also added maven support and i'm using Hibernate as persistence layer (everything is packed into an ear and deployed on Jboss5).
Actually i need to create a sort of back-office in order to display a set of data informations and the user interface must be shown as a set of web pages, so i'm oriented to give a try to Spring as i know it's well integrated with all this stuff and i'd like to deploy a unique ear at release.
I'm wondering : is there some side effect that i should know about in this kind of attempt?Is there some blocking or troublesome step?
Any advice will be appreciated!
Thanks in advance.