If you find yourself in the unfortunate situation of being a gamer that hasn't played "Left 4 Dead" yet, you probably should take care of that. Luckily, Valve will be putting it up on Steam for FREE this Friday. Yes, there's a catch, but it's still pretty cool:
If your connection is slow and you're worried you'll spend 23 of those 24 hours downloading the game, don't worry, you can pre-load it now and then just flip the switch on Friday morning.
Unfortunately, I don't have the PC version myself, but I do know a good many people that do. If you're not sure that you want to buy the game, this is a great way to get your feet wet without having to drop any cash. Make a date with some friends, and kill some fucking zombies already, for free!