[gariharrr]

I've got a few that you might be interested in.

http://www.a2armory.com/

http://www.mwart.com/

http://store.southwestblades.com/index.html

http://www.centuryfitness.com/
(Look for the aluminum sword section)

The first three should have plenty of examples, especially the second. Most have just regular Western swords but the third has a lot of katana wallhangers. Hope this helps.