Some points:
* Make sure your
IDE has a plugin that supports Maven and use it.
* Set up a remote repository on one of your servers using Nexus or Artifactory. Make sure everyone modifies their settings.xml file to reference that repository.
* If you need to access multiple repositories, configure that within Nexus., not within the pom.xml file.
* Make sure all binary artifact sharing is done via Nexus (discourage use of "file shares" for sharing stuff).
* Place binary artifacts that are not available anywhere else into your Nexus repository (that is what the "thirdparty" repository is for).
* Make sure everyone understands basic Maven terminology, and how Maven works.
* Write some plugins. That is the best way I know of to really learn Maven.
* Make extensive use of Maven's capability to generate project web sites.
* Set up a central source code repository (or repositories), even if using git or mercurial.
* Set up
Jenkins to do "official" builds from the central source code repository. Only these builds should update the Nexus repository (that is, only Jenkins should run "mvn deploy", developers should never run that, they should do at most "mvn install"). When setting up Jenkins, NEVER set up a developer's machine as a build slave!
As you can see, Maven is only a small, but significant part, of a system that uses multiple programs, each with their own strengths.