Check out this site & do a search: www.komando.com
It is the site of the weekend computer radio talk show host Kim Komando. There are several freeware options & she seems to have both choices of everything. Thats where I got my spybot, adaware, & zonealarm. They also have a freeware antivirus called AVG made from lavasoft. All work very good for me. AVG just caught a trojan horse comming thru last nite & removed it. Everything I use is free!

Good luck!