Well... Valve (creators of team fortress 2 and the half-life series) combined with Turtle Rock Studios (creators of counter-strike) are going to release their latest game, Left4Dead, due for release on the 18th of November (4 days after my last exam! yerrr!). The game is a co-op, multiplayer online shooter where u work together with 3 of your friends to pass huge levels ridden with zombies. To add to this, players can assume the roles of zombies and u can actually have matches of zombies vs humans.
I recommend u guys read up on it and youtube it if u haven't heard of this game and buy it right NOW! It is available on Steam for a discounted price of $44.95 if your pre-purchase, this is 10% off from the normal price of $49.95 once the game has been released.
If any of Australians buy the game, add me on Steam and I'll come own some zombies with ya Wink