Antivirus and firewall4my new ibook?

Is there a recommended anti virus and firewallI should get for my new apple ibook?

Or is there any freeware that does the job just as good?

Just like zonealarm on pc?

Thanks

:black:

there are no viruses for mac, so that takes care of that. as far as a firewall, just turn on os x's built in firewall, its more than you need, its in system preferences>sharing.