Good luck, maybe I'll also later use the diagram (haven't seen it) for USB cabling on some of my own cases (HDPC-type ones and slim aluminum ones.)
BTW, there may be PCI cards that have not only USB but also IEEE 1394, SATA, and other things. Not sure how much they cost there. USB-only cards should cost less than US$10 for most cheap brands. For me, this motherboard has only 3 PCI slots: Creative PCI sound card + SATA card + PATA IDE card (mainly for ODDs), and that's all, no more for IEEE 1394.