Akka-sbt-project-template is a project mainly written in Scala, it's free.
A SBT template project with Akka & IDEA plugin and specs2
A SBT project with Akka 1.0 plugin, Intellij IDEA plugin and Specs 1.6.8. All the good stuff you need to build your next Akka project.
Use "sbt idea" to generate all the Intellij project files. Enjoy!