@KimmoK

PCI-X would be nowhere near fast enough to handel that sort of data, currently most people use PCI-X 133 which can do just over 1Gigabyte per second. PCI-X 533 can do ~4.3Gigabytes per second PCI-Express would be a better choice, allowing up to 128Gbps per connector. Alternativly a custom connector using multiple 32bit hypertransport lanes, each with a maximum speed of 11.2gbps per lane.

Edit: These figures are wrong, I must have been hlaf asleep when I worked them out, pelkase see page 7 for accurate figures of several bus types.