I am an experienced Spring user and have Spring Live and Pro Spring which are both good. I highly recommend the new "Professional
Java Development with the Spring Framework" by Rod Johnson, Juergen Hoeller, Alef Arendsen, Thomas Risberg, and Colin Sampaleanu. This group is most of the core of the Spring development team. The book does a good job of covering the strategic aspects of using Spring as well as the basic details of how-to use it.
kktec<br />SCJP, SCWCD, SCJD<br />"What we observe is not nature itself, but nature exposed to our method of questioning." - Werner Heisenberg