I've just got the MacBook Air 11.6" , that's a really sweet little thing.
My electronic portfolio is on it, and I will add some extra content like making-of and such; it's not even too bad with Photoshop CS4, but by no means a proper workstation .
No Firewire, but at least two USB ports, so you can tether it to a Canon and still have room for a portable harddrive, without using a hub.