Source for utilitarian floor vents

[ncaudio]

I'm working on my installation using 2 Ficar 18's per side and needed a special sized floor vent and found this supplier that has a large variety from 6X6 to 20X20 square and up to 14X20 rectangular. These are pretty plain, but in my setup they will be in the back corners and not very visible.

www.comfortgurus.com/index.php/cPath/105_137_181

[modemjunki]

These folks have some lovely decorative registers:

www.reggioregister.com/

[doq]

Are there any issues with these vibrating? I love the idea of using them, just concerned about noise.

[ThomasW]

Which ones are you thinking about using?