What would you consider the best zombie killing game.

[eichh]

I have a mic for my computer and it works but not in the game L4D how do I talk to others when online? Is there something I have to adjust or click on  to enable it?

[He Man]

yea, usually you have to click a buton to talk unless you have handsfree on, its so you dont breathe into your mic and annoy the shit out of other people.

[yotogi]

Plants vs. Zombies

http://www.popcap.com/games/pvz

Free demo version for download. Pretty fun little tower defense game.