It's not one I have, but it's the one I will buy after we move (and no longer have a central vacuum cleaner) -- a Miele canister vacuum, whichever one I can afford. Will be sure to get a Hepa filter as we have three cats and several in the family who are allergic.
Edit: The Miele vacuums are made in Germany. Check online for reviews from users.
Edit2: Here is a relatively inexpensive Miele on Amazon that has a lot of good information in the reviews:
http://www.amazon.com/Miele-Complete...anister+vacuum