Definitely. For as weak of a crop as '08 has turned out to be, this could be a great year Oscar-wise.
Winslet, Pitt, and DiCaprio all have shots to win their first Acting awards, same with Fincher and Aronofsky for Directing. I think Downey will get a nomination for Tropic Thunder, at least as an acknowledgment for his big comeback this year, but won't have a realistic shot at winning. The fact that the The Dark Knight could get nominated, no matter how you feel about, is flat-out cool; it doesn't matter if it has a shot at winning, but just seeing it up there would be nice.