Hello, I have an ABS Digital 1 with the Intel D850MV board and I would like to upgrade my USB controller and add firewire support. Will a PCI board work on this board and if not, what would you recommend as a replacement board that will run a P4 2.0 gHz, 400mHz 478 pin with Rambus RIMM (800mHz - two 256MB), WD 100GB ATA/100 HD, GF4 TI4400 w/128MB, and Soundblaster Audigy Platinum, running XP Pro? Thank you.