Martin,
I'm sure that most of the exhibitors will have show offers, if you are looking for a discount on a specific product then I'm sure that all you have to do is ask. Remember that business is a two way street, if you want something you can be sure the supplier will want something in return, so bring your cheque book with you because payment at point of sale will usually swing it.
Unlike the N/Fed the IWCA do not sell tools and equipment, but I'm sure that the Fed will have show offers too.
So far however it looks as though greatest demand is for items that are not on offer.
best regards
Craig