You should check out Maltoni's website
http://www.espressomadeinitaly.com/
Interesting gallery photos, and lots of other information.
Enrico has answered all my questions in a day or two.
His book is great as well. Full of commercial machines that you won't find anywhere else. I wish he had more home machines, but there's other books for that.
And his site is in several languages including German and English.
Check it out.
charlie