Express card/FW bus question

[Empr]

I've read that you cannot daisy chain FW400 and 800 together without the everything in the chain going down to FW400 speeds.
If I get an express card for FW400, will it also share the bus of the dedicated port and reduce all speeds to FW400 or will I be able to get both FW400 and FW800 speeds on the same machine?

 

[Eidorian]

You're going to be connecting over a PCI-Express x1 lane independent of the FireWire controller.

 

[Empr]

So that means that I will be able run devices with both FW800 and FW400 speeds and not be slowed down by the 400?

Forgive me, I am new to this port/bus stuff.

 

[Eidorian]

That is correct. The FireWire controller and the ExpressCard slot operate over different connections.

 

[Empr]

Great. Thanks.

 

[J&JPolangin]

I have a semi related question... I have a quad interface HDD and I could connect it to my iMac via FW800 or I can connect it to my AEBS.

I'm looking for the fastest way I can share it over my network = which would be best or will it not matter except to the iMac that its connected directly to with the FW?