I've just realised you meant Firewire - yes, it has firewire video out, and I have hacked it to give firewire in (European DV camcorders often have DV-in electronically disabled to avoid paying VCR tax).
Basically I want to be sure my NV-EX3 will work with imovie and the new imacs before I upgrade my Rev B imac (which is otherwise fine).