The Sims 2: University is announced as the first Sims 2 expansion. I believe it is coming out march... im not sure, but it should be out soon. Anyways, i dont really know that much about it, but i will update with stuff. Check out gamespot for some screenshots.
So, share your opinoins.
Known things:
-Your sims will be able to go to classes and have insane exams
-Party Party Party!! Your sims can go to wild college parties.
-I believe your sims can get dorm rooms. (note: im not totally sure about this one...)