Personally i use Microsoft Anti-Spyware (it is now included in Windows Defender (Beta 2)) availiable at www.microsoft.com and there is a link on the main page.
I personally also use Ad-aware SE www.download.com and look for Ad-aware SE.
As for Anti-Virus i use AVG Free which is great!
You will also need a firewall which i suggest Zone Alarm Free www.zonelabs.com
Ah blind trust there RiverS. Good to see it's alive and well. Just because your router has a firewall doesn't mean it will block them all. I run ZA as well.
hmm spose so lol so it is best to have more that one firewall? I hear there is a new virus that breaks your firewall down...don't know what it is called but.
That's why you have the router firewall then a software firewall. I use ZA. You have to teach it as you go along. But to a lot of us it's a minor thing in comparesion to getting slapped down by a hacker...