I am a beginner to SmartGWT and it took me a couple of trials to get the sample example of running SmartGWT with Spring-Hibernate in a maven project.

http://opengambit.com/kiranscorner/?p=42

Its really a beginners guide and includes the link to the starterapp with maven.
http://opengambit.com/kiranscorner/wp-content/uploads/2010/06/starterapp.zip