If you have $250 to $400, the NatureMill Automatic Indoor Composter can take care of up to five pounds of food per day for about 50 cents of energy per month. Decomposition is speedy and relatively odorless, says the manufacturer.
The various models and costs show up here, on Amazon.
The manufacturer has posted this video, which offers a quick review of operation.
Also, catch this third-party demonstration from Clean Air Gardening.
Fifty-eight percent of Amazon reviewers gave the NatureMill a 4- or 5-star rating, but 33% of reviewers awarded only one star, primarily criticizing the quality and functionality of the product, as well as some complaints about customer service. http://www.amazon.com/NatureMill-Plus-Indoor-Compost-System/product-reviews/B0019CHYSO
This blog post on “Common NatureMill Composting Tips” offers further insight.