First let me say goddamn.  Ok so I foolishly ordered a Presonus recommended SIIG NN-400012-S8 pci firewire card before I even check my tower (yeah I know bad idea) and it turns out I have NO PCI slots, only pci express it would seem.  Presonus lists both the ADS Pyro 1394a and StarTech EC13942 as compatible express cards, however I believe these are both for laptops, at least I know one of them is for sure.  So if any of you guys could provide some insight as to what I should do, I would appreciate it greatly.  Im so fucking tired of staring at my "$450.00 paperweight" aka FP10.  I know the unit's firewire is burned out, but until I get a "compatible" chipset they won't replace it.  Fuck!