The gym at my school offers a free 'Core-Connections' class that runs you through various abdominal exercises for 30 minutes. The class is more geared towards women that are trying to get in shape so sometimes it's not a good work-out, however I almost always come out of it with new ideas for abdominal exercises(the scenery is nice as well). I also play club hockey about twice a week, which is basically an hour and thirty minute pick-up game.
Other then that I am running, doing Starting Strength, and the Armstrong pull-up program until the end of school. Once summer hits I am going to switch to running and Crossfit. I am too busy/drunk at school to really get any gains from Crossfit.
One of my main concern is training for injury prevention, which means more general strength stuff. It would suck hard to get to Week 5 and have to drop because you got injured in some crazy way that could have been prevented if you had done more squats.