Hi smage, I'm italian too and I'm (like you) interested in a UK keyboard layout.
Actually I found this links:
http://www.amazon.co.uk/Nokia-N900-M.../dp/B002QEBX5E
http://www.celluloco.com/nokia-n900-...l-pr-2419.html
http://www.newegg.com/Product/Produc...82E16875205178

I'm not very used to buy online and I'd like an advice for the best price/affidability.