Whither Mac anti-virus protection?

I’m starting to wonder a little about what I will do on my Mac for virus protection since Virex 7.5.x isn’t Tiger compatible. I’m apparently not alone in wondering. MrBarrett.com neatly summarizes the current Mac antivirus marketplace, and points out a few contenders I hadn’t considered, including Sophos (which is apparently only available to business customers) and ClamAV, which may be the only option to fill the gap between now and the vaporous release of Virex 7.7.