There is a rumor floating around the web on a new Nikon D40 about to be released.
Some of the rumored "facts":
$500
6 MP
3 AF points
2.5 FPS
1/4,000 - 30s and Bulb
AF-S (internal motor) lenses only
You can read about it here:
http://www.kenrockwell.com/nikon/d40.htm