[LizPf]

For me, it's partly a UI appearance thing ... I prefer my different calendar items to be black text on a colored bar, not colored text on white.

A larger issue is that it's a pain to share calendars with others. My DH uses Windows (and can't load software onto his lab machine), I use Tiger, my daughter has Leopard. I keep calendars for all, including my son, and several others.

I settled on Google Calendar as a way of setting up all those calendar files, so everyone can see them, on any computer. But, iCal has a lousy interface to Google. After I couldn't use gCal, I tried iCal with Calgoo ... I did get two way synching, but Calgoo is clunky and non-intuitive.

I suppose if I wasn't managing a host of different calendars for a busy family, I could deal with the ugly interface of iCal.

Sunbird works much better for me.