If you would like to order a copy of Drive Genius 3 you can do so here.
Drive Genius 3 New Features
Monitors the overall health of your drive, alerting you to possible issues before they become major problems.
Runs as a 64-bit application on Mac OS 10.6 or later with a compatible 64-bit processor.
Provides even better defragmentation of your files and even more fragmentation information in a new user interface.
Support for hardware RAID and Apple's software RAID.
Add, delete, hide, expand or shrink OS X partitions so you can organize your drive more efficiently.
Realtime bad-block scanning and an extended block verification that stress tests the read/write validity.
E-mail notifications can be sent when long-running tasks complete and you are away from your computer.