ANTI VIRAL
AVG (free) http://free.grisoft.com/
FIREWALL
ZoneAlarm http://www.zonelabs.com/store/content/company/products/znalm/freeDownload.jsp
WEB BROWSER - http://www.mozilla.org/products/firebird
EMAIL use thunderbird. It has a good built in spam filter and learns when you teach it. http://www.mozilla.org/products/thunderbird
SPYWARE
http://www.lavasoftusa.com/software/adaware/
http://www.safer-networking.org/en/index.html
1. Use WPA encryption (WPA-PSK) it's less crackable then WEP.
2. Make a passphrase that is upper & lower case and has some numbers thrown in there as well, again harder to crack.
some like mAkE1t5eCurE0rel53 and as long as possible.
3. Use MAC access control so only you or authorized PC's can connect (even if you do have encryption turned on)
4. Turn off DHCP use static addresses.
5. Turn off SSID (and change it) unless your card really needs it (some do)
6. Change username/password of access unit front end
7. Ensure you have the usual firewall enabled on your PC.
8. Paranoia rules, turn WLAN off if your not using it :)