I'm looking at your specs for PCIe SLi config, Athlon 64 939 pin. I would get this motherboard. I know there are new ones better than this, but not out yet:
ASUS "A8N-SLI Deluxe" nForce4 SLI Chipset Motherboard For AMD Socket 939 CPU
GIGABYTE "GA-K8NXP-SLI" NVIDIA nForce4 SLI Chipset Motherboard For AMD Socket 939 CPU
I don't think Newegg will ship to Canada, but maybe you can use this as a guide to find similar boards on other sites.
Go to www.zipzoomfly.com
because they will deiver to Canada.