CPC have a cable - £10 each!
Unfortuantly the inserts aren't XLRs, just the main inputs and group outputs.
Stuart, thanks for the offer. I was thinking of making it myself but i'm not sure how i'm going to get two cables in the end of a jack connector, they all seem to be designed for the width of one cable. Will have to go down to Maplin and try and stuff two cables in one.
More of a box than card really - Its an
Edirol FA-101 (Roland) 10channel firewire box. Pretty cool little box.