Phil Askey at DPReview has previously reviewed the S1 and D1. Both reviews have sample galleries so you can get a good idea of what the cameras are capable of, and the D1 review includes a comparison to the S1.
The fix for the D1's colour problems you mention is actually not the best way to get accurate colours out of the camera: if you use RAW mode and process the resulting NEF files using QImage or Bibble then you'll get results that are significantly better in every way (colour, resolution, handling of highlights / shadows) than the in-camera produced JPEGs. Both these applications are shareware so you can try them out and see which you prefer before you buy.
The other possibility, of course, is to wait for the D100....
P.S. There are a fair number of my own D1 photos in the "A Picture I Took" forum if you want to see some examples processed using QImage - although you'll need to search the archives for posts with "AlanC" as the author to find them.