ConsignPro
   Consignment management software - downloadable free demonstration.
   http://www.vhsoftware.com/consignpro.asp

Consignment Shop Software
   Software solutions for consignment shops and resale shops. Offers demo online.
   http://www.consignmentshopsoftware.com/

The Consignment Shop
   Offers a point of sale consignment business application. Runs on Windows.
   http://www.theconsignmentshop.biz/

WACI
   Designed for new businesses, WACI provides the basic features needed to start and manage a consignment business, enabling you to deliver top-notch service to customers and consignors.
   http://www.los-gatos.ca.us/los_gatos/businesses/the_webworks/waci/index.html