United States of America
The vendor A-Tech Fabrication has been on the AVS forum for quite a long time and has taken suggestions and deigned many nice cases for HTPC use and also for mass storage. A couple of the cases are silent - based on heat pipe technology. I don't own nor do I have any financial (or other) interest in the company or the cases. The cases are pricey and heavy but have been shipped to european countries.
A-Tech HTPC cases
A-Tech HTPC cases