I've looked at that phpBazar but it always struck me as more of a personals program than something I would need (strictly sporting goodfs sales)
One of their example sites seems to use it well though for classifieds and I could always remove the personals verbage in the code/template I guess. Thanks for the link!
A.B., thanks for the clarification on the other system. As long as sellers are not peppered with inquiries after they sell the item then it will be fine.