[LFE]

Is there anyone out there making custom Chassis or enclosures?

[Gordy]

I'm not sure if IAG does custom work, but the chassis's are very nice...
http://www.iagaudio.com/

these companies all do custom work...
http://www.protocase.com/

http://www.par-metal.com/

http://www.frontpanelexpress.com/

http://www.lansing-enclosures.com/main/customization.html

[fajimr]

you might also want to check out Ken's site below.  They are not custom but you do have some options:

http://www.digitalanaloguediy.com/