I've gotten some decent answers about stuff off crunchbang's fora. Sorta sold on *buntu these days. On the upside, everything just works (my mate fixed all his granny's trouble by bunging ubuntu-netbook on her desktop.....networking worked again, no viri, and a desktop she can see), even mobile broadband (on my netbook from plugging modem in until being connected....Windows XP (for which drivers are provided) 8.5 mins, Ubuntu-netbook-remix ("unsupported" according to makers), 2mins 10s).
Ubuntu is moving SO fast these days too. I'm running a beta of Lucid Lynx on me laptop, but it's very well updated so it's not very beta.
Everyone should keep an *buntu CD around for the day their windows has died and they need to get online NOW.....or the day their monitor is blank and they need to know if they have to buy a new one or just fix windows).
Windows 7 is kinda sexy, now they've nicked all KDE's bst bits. Been using it since Jan, and only now suffering the first real hassles (the vanishing hard disc for example.....gives every impression of a dead drive.....except it's absolutely fine...and will pop back up after a random number of boots.....all the more hilarious since the bootloader is on the drive.....so the bootloader launchs windows.....which then claims the drive containing the bootloader is toast) and cubase is being a dick. Apart from that it's very much a non-pisstake version of vista.
The best anti virus is havin a clue about what sites you visit in Dos based OS's (yeah....it was facebook, course it was).
Aside from that, comodo, avg, kaspersky....all good, in fact ANYTHING other than Norton (or any of symantec's other guises) or MacAffee (watched that cunt stare RIGHT through a virus that was eating a machine alive). On balance, the virus will be less upsetting than either of those in day to day use.
Oh, and ppl don't do viri for linux because it's obscure, AND COS IT'S A CUNT TO GET IT TO TURN ON IT'S USER!!!!!!!