Attached Link: http://housecall.antivirus.com

*"what guarantees are there against a virus attack on our computers from the products available in the marketplace?"* Open 'em in Mac OSX? :) There is a palce where you can get your system scanned without the need for buying AV software to do it (see link up there- it goes to Trend Micro's AV online scan website - it requires IE to do it, tho'.) It also avoids having to worry if your virus definitions are current enough - it does that already. I run it on everything I download - as a plus, you can just have it scan certain files, folders, or the whole computer - your pick. I use it on downloads I get. /P