m2eclipse is a nice plugin to have to run maven inside eclipse. After struggling with command line maven for a while, I started to look at m2eclipse and fall in love with it very quickly.

Here are some links:

1. How to start a maven webapp, integrated with eclipse WTP: http://docs.codehaus.org/display/M2ECLIPSE/WTP+mini+howto#WTPminihowto-Launchwebapplicationontheserver
2. Use Nexus indexer inside eclipse: http://docs.codehaus.org/display/M2ECLIPSE/Maven+Indexes+view
3. An article about using maven to create a webapp project, based on the command line tool:
http://www.burlesontech.com/wiki/display/btg/How+to+create+a+Maven+web+app+and+deploy+to+Tomcat+-+fast
4. The nexus maven repository manager (integrated in m2eclipse): http://nexus.sonatype.org/

For tracking the tasks for my GSoC, I decided to use the Google Code Issues . I also want to use Mylyn to manage these issues, right on my eclipse. Here is a blog on how to hook up mylyn with google code:
Using mylyn with Google Code - Updated for Eclipse 3.4 (Ganymede). The blog is a little out-of-date (step 8, 9 are not necessary any more).

Here is a look after the setup.