There is another thread in the Toy Talk(?) forum about these, but there's no chases in this series, though each figure is limited to 500 and there is 16 in a case- inc. 2 sets of 7 + 2 extras.
for some more info anyway!
[ Added: Fri Apr 04, 2008 2:54 pm ]
For anyone that didn't already know, these are available now!
Also, Nathan told me these can be left as they are, but with such clean sculpts, they are perfect for customizing the designs yourself.
The windup mechanism / legs are also removable if you'd prefer they sit flat, so you can do what you want with them!