I have a few specific questions if the author is watching. I had to implement an auction for in-house use, and needed several different types of account. In one category, and I use that loosely, because I ended up having to create a whole separate instance for it, we needed the ability to transfer items at no cost. Basically, it was just transferring equipment such as a monitor or printer from one department to another, so, it was a first come first serve with no cost. The other category was just a traditional auction. So I guess my question is can you create different top level categories that only allow transfer, at zero cost, and have separate sub categories, like monitors etc. I would then create a separate traditional category with sub categories, for a traditional auction. I would love a copy by the way :)