Hi Mark,
That is one very cool machine there, do they say what it will retail for.
I built myself a 3 axis machine with the potential to add a 4th axis at a later date, I had blogged the build for a few mates to watch it go together.
Have a look if you're interested to see a completely home built machine that started out as a way of making templates for my wife for patchwork quilting but has so much more, it's just up to the imagination I guess.
Cheers
Nico.
http://nico13web.com/diy-cnc-router