I need to expand the number of available FireWire ports on my parents' Mac Pro, and I'm curious as to which solution you all think would be more cost effective. I'm finding that a powered hub seems to be quite the niche product. I'd like whatever I choose to have at least three FW 400 slots (don't care much about 800). I've already got them hooked up with a USB hub, so I'd prefer that any hub not be a FW/USB combo, but I've accepted that I might have to settle for that to get what I want. Appreciate any thoughts and product recommendations.