I recently discovered these places:
==> serinos.com/tomatoes_wholesale.htm -- Hyde Park, MA -- retail with a wholesale division
I got a case of 6lb 7oz cans for around $25.00. Asked the owner Paul Serino if it was ok to send customers - said sure thing. Just make sure he is there before you make the trip.
==> colonyfoods.com/ -- Lawrence, MA - wholesale distributor w/ cash and carry
GM All Trumps 50 lb bag: around $17.00
Grande 50/50 part skim/provolone: around $2.38 / lb (30 lb cases) (as of March 2009)
Good Pizza Making