Anti-virus software

I'm spooking having just gotten a nasty virus on my seldom-used IBM. I want to get something for my macs now:
PowerBook G4 TIGER (PPC, OS X 10.4.11)
MacBook Air LEOPARD (Intel, OS X 10.6.2)

Questions:
1) Will any of the standards (Norton / McAffee / Intego / Kaspersky) cover both computers iwth the different versions of OS X?
2) Are all those standards, for all intents & purposes, about the same? I'll be getting the highest-grade version I can get, with internet security and anti-virus.

With thanks,

LinLin

At this point in time there is nothing out there to corrupt your Mac. Save your money, time, disk space and just enjoy your Mac.


No need for AV on it for now.

There was a trojan going around in a Torrented version of iLife 09 so if you dont do torrents like that there is no need to worry.

Cheers

Have a read of Official Anti Virus and Firewall FAQ

1. Kepp all AV software well away from your Mac particulalry Norton's.

2. Have a read of this link, whilst a little old is still current as Tattooed advises no virus for Macs running OS X.

Mac OS X anti-virus software: More trouble than it's worth? | MacFixIt - CNET Reviews

3. If you run Windows on Boot Camp, download Microsoft Security Essentials to that partition.