Modern life means multiple calendars, and iCal makes it simple to deal with them. You can see your schedules for both work and home, color coded, from within a single window to let you identify conflicts and free time.
You can look at your family
What’s new in this version:
iCal 1.5.1 is easier and faster to use with its enhanced Info Drawer, To Do alarms and notes, more keyboard shortcuts, ability to publish or subscribe to calendars on servers located behind a firewall, improved alarms, support for events in multiple time zones, as well as other stability and performance improvements.
Mac OS X v10.2.3 or later
Publishing calendars on the Internet requires a .Mac membership or a WebDAV server.