Do I need a firewall?

[mishima]

I have just setup a Wireless network at my girlfriends house, on the D-Link router I have enabled WPA and firewall protection in the admin control panel but I'm unsure if this is going to fully protect the system, do I need software firewall also?

 

[mishima]

Fair play, I'll leave it as it is seems pretty secure I have just performed the various firewall tests that are available online!

 

[mishima]

haha! It proper gets me annoyed when I have to go round friends to fix their virus infected PC's after the last time I told them to keep definitions up-to-date and scan regular.