[RndTbl] EPROMs

Does anyone know of a good mail-order place in Canada for purchasing EPROMs? I checked with Active and Tip Top here in Winnipeg, and they don't have the ones I need and aren't likely to get any as they only stock those with large demand. I'm looking for a 4 Mbit (512Kx8) EPROM, 120 ns 32-pin ceramic DIP -- AMD part number 27C040. 27C4001 would do as well. I'd like around five of them. They're available from the US for around US$7 each, but I'd prefer to order from Canada.