iCal supports per-account calendar sync for multiple calendars. To add an account:- 

- Click iCal > Preferences > Accounts > + 

- Enter the following values:- 

Account Type: CalDAV 
User name: Your email address 
Password: Your password 
Server address: http://www.outitgoes.com:8008/calendars/email@domain.com/calendar/ 
(Where email@domain.com is your email address) 

- Click 'Create'. 

For the iphone this is available from settings -> Mail, Contacts and Calendars -> Add account -> Other -> Add CalDav account.