Firewire 400mbps Or 800mbps? Options

[Drainland]

Hi there,

I was just about to purchase a new Imac and a Motu 828 mk11 (when it becomes available) for use with Logic when I noticed in a review that the iMacs only have firewire 400mbps connections as opposed to 800 on the tower systems. So basically what I need to know is will this be fine - and will I still get the best capabilities from my set-up? I also noticed that the new Imacs don't have usb 2.0 - so wondered if this would cause any problems - I'll be using an emagic Mt4 midi interface as well.

many thanks in advance!