This is still an GCzII thread, but regarding the last entry
I just wanna say that I'm working on a Manual for using Cachebox.
It's dedicated to former GCzII users -like us all- that maybe don't talk german.
Therfor it's written in (my bad) english.
You can find it here, just take a look.
It's not ready yet, but I'm working on it steadily.
I think, Cachebox is a very good addition, maybe alternative to GCzII.
At least anyone using GCzII has the needed hardware and can easily try it out.