Ok ... i have a Mac Mini , which has 1 Firewire 400 port ... now im looking to get a Tascam Fireone interface and an external firewire drive (maybe a caddy as i have plenty of hard drives laying about ) ... ive seen caddys with 2 firewire ports on the back ... would it be ok to connect the Mac to the caddy then the tascam to the other port ??? which is the best way to get better HD performance ? my external USB 2.0 drive keeps giving disc to slow errors in Logic ...