About any body shop will take a tan case and change its color.
Even easier if they are about to paint something else black.
If you're not a jerk (for *their* definition of not a jerk) and
happen to sync up with them well, it might be really cheap.

The best way to do it yourself would be to strip/sand a case,
prime it (really, primer is key) and then paint it a few times.
A clearcoat finish will help it last.

You could do a powder coat, but that's not really easy for
a one off.

Remember that black will show every flaw in the case quite clearly.

chuck
/me pondering how to stuff an ATX board into a NeXT slab that looks
so nice in the stereo rack.

Quoting Sam Carleton (sam@linux-info.net):
> folks,
> 
> the subject says it all!  I am looking to put together another
> NetBSD machine.  The case HAS to be black and small, I would
> like a desktop case.  Does anyone know where I can find such a
> case?
> 
> While I am at it, does anyone know where to find good prices
> on older motherboards?  I only need something like a Pentium
> II/III.
> 
> Sam