The S7000 is the replacement for the S602 so that should make the decision obvious. Also checkout the Panasonic FZ20, a great technical package but odd ergonomics (IMO).
I had a fuji s602 and was very happy with it, and before buying, I would check the reviews, as I am sure that the s602 and the 7000 have different ccd sensors, and even though the 7000 has more megapixels, I dont think that the ccd is as big as the 602's if you want some 602 pics I can email you some, all in all a great camera.