Tai_Pan almost word for word same experience I have with trying to order..... but may be a good thing because I saw that someone mentioned that there could be some power problems with them as they can top out at 800 watt and only have 3 pci-e connectors to power 3 boards.. that's a lot of juice on those lines... not sure how safe that would be?
As for the power issues, I think Baikal would have figured it out before delivering. 2 in 1 pci-e cables to share the load, perhaps?