Douglas A. Tutty wrote:

quoted text
> Who makes a solid, steel case that doesn't cover up large holes with

> plastic stuff?

The 2U and 4U rackmount Antec cases I've used in the past can be used

with only internal drives.  The front panel door (and chassis slot

covers) are vented with small holes.
I guess what would matter is whether the holes are small enough that the

  wavelength of the radiation you're trying to keep contained cannot

pass through it effectively.  The holes in these are smaller than the

diameter of a pencil.  I could send you some pics if you like.
They are definitely heavy steel with burnished edges, too.
-John