Rich/Iggy - you hit the nail on the head about not outing anyone here who you would like to do business with in the future. It just isn't good business sense to do so.
The auction house I described previously with high charges, sent me an email apologizing for the mistake, and is sending me a refund check - I never mentioned their name or contacted them about it, so it shows that these guys keep an eye on the board. Also, the person who contacted me showed me that it was an honest mistake, and he was right. They just caught me at a bad time - three very high s&h invoices in one week, and they were number three
The other thing is, you get a feel for what these guys charge and you factor that into your bids. For instance - winning one small inexpensive photo is a deal-killer, even if it's bargain-basement priced. I need to make sure I win three next time