How do you organize your build configurations?

I'm using TeamCity for the first project I tried to apply CI and I created build configurations as below:

• Trunk
  Development build configuration, it will run if files are checked into trunk. No code coverage, no artifact, it should run as fast as it can
• Nightly
  It will run nightly and produce code coverage and artifact
• Release
  As its name, just for releasing. It also supports to deploy the release to remote server

How do you organize your build configurations?