WebDAV ...

Korganizer used to be my PIM of choice but now that I have a PowerBook I've been using iCal. The problem this has caused for me is that I'm no longer able to easily export my calendar in iCal like I could in Korganizer. What I'm getting at is, I need to set WebDAV up on my server. I have had no experience with it before. Is it built into Apache? Do I have to install anything? Is it relatively easy? Could you suggest any good online sources for information?

Operatica - Cherry Six By Darryl Strickland - Melancholy Rose