On mine it shows it as just another drive. I have 2 drives on my SOny desktop and a firewire HD external running Linux with 2 distros... I am using Suse 8.2........next week 9.0 when the new one arrives.
Or, just use Knoppix Linux. Go to http://www.knoppix.net , download the latest ISO, burn it onto a CD, and voila! Boot any machine with the CD and you got yourself linux, with KDE and all. You can even save a permanent home directory on your hard disk or other media.