I have to disagree with this statement:
"the only websites that have viruses on them are crack websites and porn websites"
I build PC's for a living , I'm a technician at a school at have to put right all sorts of problems staff and pupils have with Pc's .Many years ago I would build a new Pc and go online to test the modem connection , time taken about two to three minutes , this was before broadband and as soon as I came off line I had two to three virus's , one of them was the msblaster worm . This was just by going to Wanadoo home page . Theres worms & virus's lurking on servers never mind searching through web pages . My advice :Allways use a anti-virus program and a good firewall [ I used sygate for years ] dont anymore. Better still .........dont go on-line and you wont get hit !!