I recently discovered the joys of the Sublime Text 2 text editor and decided to whip up syntax highlighting and auto completion to round off the editor.
All of the items on the OpenSCAD cheat sheet have been added to the auto completion system and you can tab between the fields. For example typing: "cu" will pop up "cube([width], [height], [depth])" press enter and the cursor will automatically be in the width field. Tab through the rest and it will deposit you outside the brackets.
I use the Monakai Dark color scheme so thats why I went with fusha, seafoam and white. Makes for some dramatic looking files.
1) Download Sublime Text 2.0.2:
2) In the editor: Preferences -> Browse Packages...
3) Extract the zip, it will make a folder called OpenSCAD. Restart the editor.