I'll start with a few that I have seen.
Product Name: Kindle Lighted Leather Cover
Type: Book Cover
Connection System: Hinge
Additional Features: Makes use of Kindle's power ports to provide power to retractable light in top right corner of the cover.
Price: $59.99
Website:
http://www.amazon.com/Lighted-Leathe...sr=8-1-catcorr