How can I use Gradle with Sonatype Nexus?

Easy.   To get you started, we've created a Nexus Pro Evaluation Guide that uses Gradle and two (very simple) Gradle projects to demonstrate how you can configure your Gradle builds to consume artifacts from Nexus and publish artifacts to Nexus.  

You can get the guide as part of the Nexus book in HTML format at http://books.sonatype.com/nexus-book/reference/eval.html or as PDF from http://www.sonatype.com/books/nexus-book/pdf/sonatype-nexus-eval-guide.pdf .