Here are a few links I've found online on the JukiF600.
This one has the manual and pattern PDF:
Juki F600 demonstration:
Juki F600 Video and info:http:
Bobbin winder on the Juki F600:
Want to buy a Juki F660 in New Zealand or Australia:
Bending Pins a blog with Juki F600 info:
Photos of the Juki F600: