Hello John,
I have also been looking at something like this in the past. I hope this might be able to help you out:
http://www.startech.com/Product/Item...=PEX2PCI4&c=US
Apparently all it needs is 1 - PCI x1 slot and it can convert that into 4 standard PCI slots. The price is also better than that Magma device which is ridiculously expensive!