Recent flooding in Thailand has submerged the Nikon and Sony camera factories there:
http://www.nationmultimedia.com/busi...-30167951.html
http://nikon.com/news/2011/1021_01_e.htm
This is the Nikon plant that produces The D300s and lower ("consumer") digital SLRs.
If you're thinking of buying, these models are expected to become scarce soon.