Believe it or not, even the MacBook Pro is not perfect.
In its latest 4 incarnations it gained a Firewire 800 port, losing the (aged, but still usable) Firewire 400 port.
Anyway, I’ve got a FW 400 cam and a LaCie FW 800 hard disk: how to connect both in a FW chain?
B plan? Use a LaCie 3-port hard disk (with dual FW 800 that serves as a hub) + FW 400 + USB 2.0.
Update: the Yin Yang it’s now available on Amazon with a substantial savng at US $ 47.