The Linux desktop is rapidly gaining as an alternative to Windows. IDC estimates that Linux has now surpassed Apple with 3% of the desktop market, and that this number will double by 2006. And the new desktop users are not just students curious about a free operating system, but working professionals who are familiar with Windows and who find themselves needing to come up-to-speed quickly on Linux. They need to quickly masters the Linux equivalents of Outlook, Microsoft Office, and Internet Explorer. They need to understand how to customize their Linux desktops so that they can be as...