I got Left4Dead fever. Left4Dead is a shooter by valve. Unfortunatley only for Windows. So I need wine or one of its forks to play the game. First I thought Wine was the deal. But it was not. It doesn’t support the advanced graphics stuff. I had to turn down all graphics in order to get playable perfomance with wine. But there was still stuttering.
Cedega on the other hand works much better. Decent Framerates right out of the box. I was really suprised how much better cedega works with source games. Just make sure to start the Games with their CDDB profile from the cedega UI and NOT from the Steam Games List.
