You'll want to use journaled. Case sensitive is your choice. If you plan to install applications on the drive, I recommend not case sensitive. Some applications have issues with case sensitive drives (such as Adobe CS2...though CS3 works). If you're planning to duplicate a linux webserver for testing, I strongly recommend a case sensitive drive. That eliminates the "it worked locally...until I put it on an EXT3 drive that's case sensitive!" issue.