Hello John,
You can find a how-to on migrating Eclipse projects to IntelliJ IDEA at
http://www.jetbrains.com/idea/documentation/eclipseToIDEA.html .
Subversion should not be an issue when migrating - IntelliJ IDEA uses the standard Subversion working copy format, so you will only need to specify Subversion as the version control system used by the project (Settings | Project Settings | Version Control), and it will pick up the rest of the settings automatically.