Nikon D100

Has anyone had any experience with the Nikon D100 in deep sky work (widefield or otherwise)? Any comparisons with the new D70? Which one is better? I heard the D70 has a newer, more sensitive sensor, but I like the mechanical construction of the D100. Any input would be appreciated.
Thanks,
Bob

I have had plenty of luck using my D100 for evening photography of aurorae, wide-field star shots, etc. You either need to create your own dark frame and subtract it from your images, or use the auto-dark subtraction method (which will essentially double the exposure time). Under dark skies, it really shines. I am including links to some of my photos, including an animated GIF of the Milky Way rising over Kitt Peak.

http://www.noao.edu/outreach/aop/observers/milkyway.html
http://www.pbase.com/image/25427693
http://www.pbase.com/image/24780892
http://www.pbase.com/image/24780882
http://www.pbase.com/jhapeman/aurora

In the Orion shot, I got down to 8th magnitude stars in only 30s and with a nearly full moon just setting. I haven't checked the Kitt Peak image, but I would bet those stars go to at least 9th magnitude if not 10th, and those are also only 30s exposures. Dark skies help a lot.

Jeff