Connect your system lan to lan not through the firewire port: Run a local are network setup on both computers. Use norton ghost to transfer your os.
Edit: nevermind using ghost. Once you have a Lan then just trasfer in the installation files to the PC.
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EVGA 680i, Dual EVGA 8800GT'S (650/950), 4 gigs OCZ DDR2 1066, Intel Q9450 at 3.8 Ghz, Koolance Water Cooled, Dual Plextor16x DL DVD+/-RW. Dual WD 250gb 16mb Cache Sata 3.0. 3DMark06 score = 19,168.