Here is the setup; Brand new '09 iMac (3.06, with ATI 4850), with 3 external Lacie Drives. Two of these drives are Firewire 800, and one is 400. So, with the single 800 connection from the back of the iMac running to the first 800 drive, then daisy chained from that is another 800, then daisy chained from that is the final 400. My question is whether having the 400 at the bottom of the stack slows up all 3 drives? As in, reading from the first 800 drive, is this slowed down to 400 because of the 400 one at the bottom? Convoluted question, sorry. Any guidance appreciated.