Still Civ 4. I'm currently doing a crazy 18 player hotseat game with 18 Maartens playing against each other. Only like three turns per day or so. One turn a day on average. Let's see how long I can keep up with that before I get bored of it.
For the rest, TrackMania every now and then. And...that's about it. I'm more into board games these days.