Hyogen, unless you're planning on doing video, the 5DC is still the better choice. The diff on the full frame is awesome and the old classic is still a very capable performer, you will find it very difficult to get a clearer sharper picture bar none.
Sold mine not so long ago and ended up getting a 1DsMkII...still miss the 5DC very much.
Now if I could only stay away from this thread and Daniel's awesome "not a model" shots.....
ah ok. I actually do quite a bit of video...will probably do even more now that I have better lenses that are easier to focus with manually