Good question. FREE is not always FREE. With that said, Auctiva is out there but you got to create your profiles before you go listing and be sure to look over the preferences and make sure everything is turned off that you don't want to be there. It will save you time in the long run if you don't like the system. This is really good advice. Been there, did it, regret it. So turn off until you are happy with what goes on.
Trak Auctions another free listing site with scheduling and feedback. Even though they have a forum, don't expect answers right away. It took me 2 months to get an answer on the forum, no response from email at all. It has real potential.
I also would suggest you review the reviews in the directory of Auction Software Review. There is a wealth of information there. Some of the auction management software listed in the directory may not be current but it is a good place to start.