Thanks for the pointers David. I will have to go back to my colleagues and discuss these points.
We are thinking of trying a Dutch Auction, but again need some help on this as we have never used this option before. After going through the product documentation, it looks like it may help as it sort of suits the purpose. But I would need some help with setting it up, how to best setup rules, etc. Would you have some sort of template of an auction that I can use?