Rupert,
Great Camera, thats like $7000.00 and Final Cut Pro is THEE industry standard for movie editing. Great Choice!! What kind of work do you do?
Look just get a PC video game card - ie Geforce 4 with a VIVO, then you can record to your hearts content, plus have a video card for games 
They can be quite cheap, certainly betetr value for money than dedicated video capture cards and quality is good.